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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Quinolin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Quinolin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Quinolin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Quinolin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1-(2-Hydroxy-2-methylpropyl)-1H-imidazo[4,5-c]quinolin-2-yl... Stable Isotopes CS-T-102553 144875-92-3(Unlabelled) Enquire
(4R)-4,6-Dihydroxy-2-methyl-1-(3-methoxy-4-hydroxyphenyl)-1,... Stable Isotopes CS-T-97583 Not Available Enquire
(4R)-4,6-Dihydroxy-2-methyl-1-phenyl-1,2,3,4-tetrahydroisoqu... Stable Isotopes CS-T-97582 Not Available Enquire
(7-(4-{4-[4-(2,3-Dichlorophenyl)piperazin-1-yl]butoxy}butoxy... Stable Isotopes CS-T-98731 Not Available Enquire
(S)-4-Nitrophenyl 1-Phenyl-d5-3,4-dihydroisoquinoline-2(1H)-... Stable Isotopes CS-T-97262 Not Available Enquire
(S,E)-1-(3-(2-(7-Chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-h... Stable Isotopes CS-T-100626 Not Available Enquire
[2,8-Bis(trifluoromethyl)-4-quinolinyl]-2-pyridinylmethanone... Stable Isotopes CS-T-101806 Not Available Enquire
1-​Cyclopropyl-​6,​7-​difluoro-​1,​4-​dihydro-​8-​methoxy-​4... Stable Isotopes CS-T-100581 Not Available Enquire
1-(1,1-Dimethylethyl)-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-qu... Stable Isotopes CS-T-100401 Not Available Enquire
1-(2-(Hydroxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl)-2-methy... Stable Isotopes CS-T-102554 144875-91-2(Unlabelled) Enquire
1,2,3,4-Tetrahydro-1,2-dimethyl-4,6-isoquinolinediol-d3 Stable Isotopes CS-T-102043 Not Available Enquire
1,2,3,4-tetrahydro-1,2-dimethyl-4,8-isoquinolinediol-d3 Stable Isotopes CS-T-102042 Not Available Enquire
1,4-Bis(7-chloroquinolin-4-yl)piperazine-d8 Stable Isotopes CS-T-102541 31502-87-1(Unlabelled) Enquire
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-5-methyl-4-oxo-3-quin... Stable Isotopes CS-T-100587 Not Available Enquire
1-Cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydroquinol... Stable Isotopes CS-T-100588 Not Available Enquire
1-Cyclopropyl-6-fluoro-1,4-dihydro-7-ethoxy-8-methoxy-4-oxo-... Stable Isotopes CS-T-101639 Not Available Enquire
1-Cyclopropyl-7-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxyl... Stable Isotopes CS-T-100585 Not Available Enquire
1-Cyclopropyl-7-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoli... Stable Isotopes CS-T-100584 Not Available Enquire
1-Cyclopropyl-8-(difluoromethoxy)-6,7-difluoro-1,4-dihydro-4... Stable Isotopes CS-T-100586 Not Available Enquire
1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quin... Stable Isotopes CS-T-97674 Not Available Enquire
1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quin... Stable Isotopes CS-T-97673 Not Available Enquire
1-methylhexyl (5-chloro-8-quinolinoxy-2,3,4-13C3) acetate-1,... Stable Isotopes CS-O-40708 1325559-36-1 Enquire
1-Pentyl-1H-Indole-3-carboxylic Acid 8-Quinolinyl Ester-d11 Stable Isotopes CS-T-98632 1400742-17-7(Unlabelled) Enquire
2-(1,1-Dimethylethyl)-1,2,3,4-tetrahydro-4,6,8-Isoquinolinet... Stable Isotopes CS-T-101467 Not Available Enquire
2-(3-Fluorophenyl)-5-hydroxy-6-methoxy-4(1H)-quinolinone-d3 Stable Isotopes CS-T-101375 Not Available Enquire
2-(4-((5,6-Dimethoxyquinolin-8-yl)amino)pentyl)isoindoline-1... Stable Isotopes CS-T-98656 Not Available Enquire
2-(Ethoxymethyl)-a,a-dimethyl-1H-imidazo[4,5-c]quinoline-1-e... Stable Isotopes CS-T-100340 Not Available Enquire
2-[(4-Chlorobenzoyl)amino]-2-[(1,2-dihydro-2-oxo-4-quinoliny... Stable Isotopes CS-T-102907 2733777-28-9 Enquire
2-[3-(S)-[3-(2-(7-Chloro-2-quinolinyl)ethenyl)phenyl]-3-hydr... Stable Isotopes CS-T-97690 Not Available Enquire
2-Amino-N-[1-benzyl-3-(3-tert-butylcarbamoyl-d9-octahydro-is... Stable Isotopes CS-T-101930 Not Available Enquire
2-Azido-3,4-dimethylimidazo[4,5-f]quinoline-d3 Stable Isotopes CS-T-98293 1215499-36-7 Enquire
2-heptyl-3,4-Quinoline-5,6,7,8-d4-diol Stable Isotopes CS-T-100252 602302-51-2 Enquire
3,4-Dihydro-7-(3’carboxy)propoxy-2(1H)-(quinolinone-2,2,3,3,... Stable Isotopes CS-T-100444 Not Available Enquire
3,4-Dihydro-7-(3’carboxy)propoxy-2(1H)-quinolinone-d4 Stable Isotopes CS-T-100443 58899-27-7(Unlabeled) Enquire
3,4-Dihydro-7-(3’carboxy)propoxy-2(1H)-quinolinone-d8 Stable Isotopes CS-T-100442 Not Available Enquire
3-{trans-1,2,3,4-Tetrahydro-6,7-dimethoxy-2-(methyl-13C)-1-[... Stable Isotopes CS-T-102962 213999-55-4(Unlabelled) Enquire
3-Amino-6-bromo-4-(2-chlorophenyl)-2(1H)-quinolinone-d5 Stable Isotopes CS-T-101927 1794793-32-0 Enquire
3-Hydroxyquinoline-d6 Stable Isotopes CS-T-101264 Not Available Enquire
4-Chloro-2-propyl-6-trifluoromethoxyquinoline-d8 Stable Isotopes CS-T-96386 168834-43-3 (Unlabelled) Enquire
4-Methyl-2-(1-piperidinyl)-quinoline-d10 Stable Isotopes CS-T-101028 Not Available Enquire
5-[(7-Chloro-4-quinolinyl)amino]-2-hydroxybenzaldehyde-13C4 Stable Isotopes CS-T-100623 Not Available Enquire
5-[(7-Chloro-4-quinolinyl)amino]-2-hydroxybenzaldehyde-13CD3 Stable Isotopes CS-T-100624 Not Available Enquire
5-Amino-1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methyl-4-ox... Stable Isotopes CS-T-100893 Not Available Enquire
5-Nitro-6-methylaminoquinoline-d3 Stable Isotopes CS-T-102831 14204-97-8(Unlabelled) Enquire
6,7-Dimethoxy-3-(3-thienyl)quinoline-d6 Stable Isotopes CS-T-99280 Not Available Enquire
6,8-Difluoro-1,4-dihydro-1-(methylamino)-7-(4-methyl-1-piper... Stable Isotopes CS-T-101532 Not Available Enquire
6,8-Difluoro-1,4-dihydro-1-(N-methylformamido)-7-(4-methyl-1... Stable Isotopes CS-T-101531 Not Available Enquire
6-[[3-[(Dimethylamino)carbonyl]phenyl]sulfonyl]-4-[(3-methox... Stable Isotopes CS-T-99281 Not Available Enquire
6-[4-(1-Cyclohexyl-1H-tetrazol-5-yl)butoxy]-1-[4-(1-cyclohex... Stable Isotopes CS-T-100589 Not Available Enquire
6-Methyl-4-isoquinolinol-D3 Stable Isotopes CS-T-100028 Not Available Enquire
7-​Chloro-​1-​ethyl-​6-​fluoro-​1,​4-​dihydro-​4-​oxo-3-​qui... Stable Isotopes CS-T-100670 Not Available Enquire
7-(4-Bromobutoxy-1,1,2,2,3,3,4,4-d8)-2(1H)-quinolinone Stable Isotopes CS-T-100739 1427053-44-8 Enquire
7-(4-Iodobutoxy)-3,4-dihydroquinolin-2-one-d8 Stable Isotopes CS-T-101225 1346599-53-8 Enquire
7-Chloro-1-cyclopropyl-1,4-dihydro-8-methyl-4-oxo-3-quinolin... Stable Isotopes CS-T-100658 Not Available Enquire
7-Chloro-4-[4-[(2,4-dinitrophenyl)sulfonyl]-1-piperazinyl]qu... Stable Isotopes CS-T-103016 1624602-30-7(Unlabelled) Enquire
8-Amino-6-methoxyquinoline-d5 Stable Isotopes CS-T-101907 Not Available Enquire
8-Chloro-1-cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxo-3-quin... Stable Isotopes CS-T-100657 Not Available Enquire
8-Hydroxyquinoline-d6 Stable Isotopes CS-O-40651 112465-97-1 Enquire
cis-1-[(3,4-Dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-d... Stable Isotopes CS-T-97577 2803857-42-1(Unlabelled) Enquire
Methyl 3-((4aR,5R,6R,8aS)-3-Oxo-2,3,4,4a,5,6-hexahydro-1H-6,... Stable Isotopes CS-T-102374 Not Available Enquire
rac-(4R)-4,6-Dihydroxy-2-methyl-1,2,3,4-tetrahydroisoquinoli... Stable Isotopes CS-T-97584 Not Available Enquire
t-Butyl (3R,5S)-7-[2-Cyclopropyl-4-(4-fluorophenyl)quinolin-... Stable Isotopes CS-T-97733 Not Available Enquire
trans-1,2,3,4-Tetrahydro-2-(3-hydroxypropyl)-6,7-dimethoxy-2... Stable Isotopes CS-T-102963 107638-71-1(Unlabelled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Quinoline API CS-O-11127 91-22-5 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5,6-Dihydroxy-8-aminoquinoline Metabolite CS-CX-00100 17605-92-4 Enquire
8-Amino-6-methoxyquinolin-5-ol Metabolite CS-CX-00088 67472-57-5 Enquire
8-Amino-6-methoxyquinolin-5-ol dihydrochloride Metabolite CS-CX-00087 860231-00-1 Enquire
8-Aminoquinoline-5,6-diol dihydrochloride Metabolite CS-CX-00099 1261394-03-9 Enquire
Neratinib quinoline N-oxide Metabolite CS-O-51244 1348481-03-7 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1-chloro-4-hydroxyisoquinoline-3-carbonyl)cysteine Impurity CS-O-46711 Not Available Enquire
(1R,4R)-2-methyl-1-phenyl-1,2,3,4-tetrahydroisoquinoline-4,6... Impurity CS-O-43306 2095343-25-0 Enquire
(1R,4R)-2-methyl-1-phenyl-1,2,3,4-tetrahydroisoquinoline-4,8... Impurity CS-O-43307 Not Available Enquire
(1S,4R)-2-methyl-1-phenyl-1,2,3,4-tetrahydroisoquinoline-4,6... Impurity CS-O-43305 2095343-19-2 Enquire
(1S,4R)-2-methyl-1-phenyl-1,2,3,4-tetrahydroisoquinoline-4,8... Impurity CS-O-43308 Not Available Enquire
(2-((7-chloroquinolin-4-yl)- (4-((7-chloroquinolin-4-yl)- am... Impurity CS-O-47359 2486134-14-7 Enquire
(4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)-L-seri... Impurity CS-O-54974 ---- Enquire
(R)-8-(Benzyloxy)-5-(oxiran-2-yl)quinolin-2(1H)-one Impurity CS-O-32271 173140-90-4 In Stock
(S)-1-(4-methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinolin... Impurity CS-O-49393 30356-07-1 Enquire
(αR)-α-[(2S,4S,6R)-6-Ethenyl-1-azabicyclo[2.2.2]oct-2-yl]-6-... Impurity CS-O-51911 1594121-64-8 Enquire
(αS)-α-[(1S,2S,4S,7R)-7-Ethenyl-1-azabicyclo[2.2.1]hept-2-yl... Impurity CS-O-51912 2096474-13-2 Enquire
{(1S,2S,4S,5R)-1-ethyl-2-((R)-hydroxy(6-methoxyquinolin-4-yl... Impurity CS-O-59042 ---- Enquire
1,2,3,4-Tetrahydro-4,6-dihydroxy-2-methylisoquinoline Hydroc... Impurity CS-O-11270 57196-61-9 In Stock
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8- methoxy-4-oxo-3-qu... Impurity CS-O-31381 112811-72-0 In Stock
2-(1-chloro-4-hydroxyisoquinoline-3-carboxamido)but-3-ynoic ... Impurity CS-O-46712 Not Available Enquire
2-(1-chloro-4-hydroxyisoquinoline-3-carboxamido)oxirane-2-ca... Impurity CS-O-46710 Not Available Enquire
2-(3(S)-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3- hydr... Impurity CS-O-45557 144551-23-5 Enquire
2-(tert-butoxycarbonyl)-5-chloro-1,2,3,4-tetrahydroisoquinol... Impurity CS-SN-00099 Not Available Enquire
2-(tert-butoxycarbonyl)-7-chloro-1,2,3,4-tetrahydroisoquinol... Impurity CS-SN-00100 Not Available Enquire
2,2'-((4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)a... Impurity CS-O-54972 ---- Enquire
2,5-dichloroquinoline Impurity CS-EM-03522 59412-12-3 Enquire
2-[4-[(6-Methoxy-8-quinolinyl)amino]pentyl]-1H-isoindole-1,3... Impurity CS-O-54101 83532-78-9 Enquire
2-chloro-N-(2-methylpropyl)-3-nitroquinolin-4-amine Impurity CS-ZE-03849 133860-75-0 In Stock
2-Hydroxyquinoline-4-carboxylic acid Impurity CS-M-16694 15733-89-8 In Stock
3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1... Impurity CS-O-33276 95848-94-5 Enquire
4-(6-(5-(2,4-difluorophenylsulfonamido)-6-methoxypyridin-3-y... Impurity CS-O-44968 1313994-59-0 Enquire
4-[(7-Chloro-4-quinolinyl)imino]-2-[(diethylamino)methyl]-2,... Impurity CS-O-47055 112430-12-3 Enquire
4-amino-1-(10-iododecyl)-2-methylquinolin-1-ium chloride Impurity CS-O-44464 Not Available Enquire
4-fluoroisoquinoline-8-sulfonyl chloride hydrochloride Impurity CS-O-52991 1334294-10-8 Enquire
4-hydroxy-1-oxo-7-phenoxy-1,2-dihydroisoquinoline-3-carboxyl... Impurity CS-O-54971 2342600-70-6 Enquire
4-hydroxy-7-methoxyquinoline-6-carboxamide Impurity CS-O-39929 2110414-05-4 In Stock
5-bromo-2-(tert-butoxycarbonyl)-7-chloro-1,2,3,4-tetrahydroi... Impurity CS-O-49952 2832127-60-1 Enquire
5-Chloro-3,4-dihydroquinolin-2(1H)-one Impurity CS-O-47209 72995-15-4 Enquire
5-Chloro-8-hydroxyquinoline Impurity CS-O-06307 130-16-5 In Stock
6, 7-dimethoxy-1 -(3,4, 5-trimethoxy-benzyl) isoquinoline Impurity CS-O-43996 Not Available Enquire
6-chloro-7-((5-(4-(3-chlorobenzo[b]thiophen-4-yl)piperazin-1... Impurity CS-O-56813 ---- Enquire
7-((5-(4-(benzobthiophen-4-yl)piperazin-1-yl)pentyl)oxy)-6-c... Impurity CS-O-56812 ---- Enquire
7-(3-(4-(2,3-dichlorophenyl)-1,4-diazepan-1-yl)propoxy)quino... Impurity CS-O-54962 1354030-38-8 Enquire
7-(4-(4-(2,3-Dichlorophenyl)-1,4-diazepan-1-yl)butoxy)-3,4-d... Impurity CS-O-54964 1354030-25-3 Enquire
7-(4-(4-(2,3-dichlorophenyl)piperazin-1-yl)butoxy)-1-(hydrox... Impurity CS-O-47267 1259312-25-8 Enquire
7-(4-(4-(2-Methoxyphenyl)-1,4-diazepan-1-yl)butoxy)-3,4-dihy... Impurity CS-O-54968 1354030-30-0 Enquire
7-[4-[4-(2,3-Dichlorophenyl)-1-piperidinyl]butoxy]-3,4-dihyd... Impurity CS-O-54967 1354030-69-5 Enquire
7-[4-[4-(2,3-Dichlorophenyl)hexahydro-1H-1,4-diazepin-1-yl]b... Impurity CS-O-54965 1354030-20-8 Enquire
7-{4-[4-(benzo[b]thiophen-7-yl)piperazin-1-yl]butoxy}quinoli... Impurity CS-O-35181 ---- Enquire
7-Amino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3... Impurity CS-T-47707 172426-88-9 In Stock
7-chloro-8-fluoro-2-phenylquinolin-4-ol Impurity CS-O-48900 867165-00-2 In Stock
8-[4-[4-(2,3-Dichlorophenyl)-1-piperazinyl]butoxy]-3,4-dihyd... Impurity CS-O-51737 203395-80-6 In Stock
Acetamide, N-[4-[[3-chloro-4-(2-pyridinylmethoxy)phenyl]amin... Impurity CS-CB-00020 915941-95-6 In Stock
Aripiprazole Bromobutoxyquinoline Impurity Impurity CS-O-31480 129722-34-5 In Stock
Diethyl 2-(2-(4-chlorophenyl)allyl)-2-((2-oxo-1,2-dihydroqui... Impurity CS-O-52711 ---- Enquire
Isoquinoline-4,6-diol Impurity CS-ED-41712 1780813-78-6 Enquire
Isoquinoline-8-carboxylic acid Impurity CS-O-16465 61563-43-7 In Stock
methyl 4-(6-(5-(2,4-difluorophenylsulfonamido)-6-methoxypyri... Impurity CS-O-44969 1607009-13-1 Enquire
N-(4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)-N-me... Impurity CS-O-54973 ---- Enquire
N-[2-(3,4-Dihydro-1-oxo-2(1H)-isoquinolinyl)-2-oxoethyl]-N-f... Impurity CS-T-53166 125273-88-3 In Stock
N1,N4-Bis-(7-chloroquinolin-4-yl)-N1-ethylpentane-1,4-diamin... Impurity CS-T-93788 2518282-96-5 Enquire
N-Bocdesisoquinoline Netarsudil impurity Impurity CS-O-57156 2097334-20-6 Enquire
Phenylephrine 4,8 Isoquinoline Analog Impurity CS-O-48658 2514676-44-7 Enquire
Phenylephrine 4,8 Isoquinoline Analog Impurity CS-O-15944 23824-25-1 In Stock
Phenylephrine 4,8 Isoquinoline Hydrochloride analog Impurity CS-O-11269 23824-25-1 (Free Base) In Stock
Phenylephrine isoquinoline 4,6-diol analog Impurity CS-O-36024 23824-24-0 In Stock
Phenylephrine isoquinolinone analog TFA Impurity CS-O-59920 Not Available In Stock
Potassium 2-(4-chlorobenzamido)-3-(2-oxo-1,2-dihydroquinolin... Impurity CS-O-52712 ---- Enquire
Pyrroloquinoline quinone Impurity CS-T-53014 72909-34-3 Enquire
Quinoline Impurity 1 Impurity CS-O-60762 83-08-9 Enquire
Solifenacin Impurity (4-Nitrophenyl (1S)-1-Phenyl-3-4-Dihidr... Impurity CS-O-14496 1229227-22-8 In Stock
(+) N-formyl-1-(p-methoxybenzyl) 1,2,3,4,5,6,7,8 octa-hydro ... Impurity CS-O-37323 63477-91-8 Enquire
(1-chloro-4-hydroxy-7-phenoxyisoquinoline-3-carbonyl)glycine Impurity CS-ED-01076 808116-60-1 Enquire
(1R,2R)-2-(2-Carboxyethyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-... Impurity CS-O-36468 1075727-04-6 Enquire
(1R,2S)-1-(6-((6-bromo-2-methoxyquinolin-3-yl) (phenyl)methy... Impurity CS-O-34383 Not Available Enquire
(1R,2S)-1-(6-(diisopropylamino)-2-methoxyquinolin-3-yl)-4-(d... Impurity CS-O-34382 Not Available Enquire
(1R,2S)-1-(6-bromo-2-methoxyquinolin-3-yl)-3-((dimethylamino... Impurity CS-O-34380 Not Available Enquire
(3S,4R,4aS,7aR,12bS)-9-Acetoxy-3-(cyclopropylmethyl)-4a-hydr... Impurity CS-O-41019 1252784-80-7 Enquire
(3S,5R,6E)-7-[2-Cyclopropyl-4-(4-fluorophenyl)-3-quinolinyl]... Impurity CS-N-05223 254452-86-3 Enquire
(4-hydroxy-7-phenoxyisoquinoline-3-carbonyl)glycine Impurity CS-ED-01075 708263-68-7 Enquire
(4R)-4,8-dihydroxy-N-methyl-1,2,3,4-tetrahydroisoquinoline h... Impurity CS-DH-00028 57286-92-7(anhydrous) Enquire
(Benzyl R -1,2,3,4-tetrahydroisoquinoline-3-carboxylate p -... Impurity CS-O-36814 227290-59-7 Enquire
(R,E)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(pro... Impurity CS-O-39167 1352029-52-7 Enquire
(S)-2-(2-(benzofuran-6-carbonyl )-5,7-dichloro-1,2,3,4-tetra... Impurity CS-O-38472 Not Available Enquire
(S)-2-(2-(benzofuran-6-carbonyl)-5,7-dichloro-1,2-dihydroiso... Impurity CS-O-38470 Not Available Enquire
(S,E)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-h... Impurity CS-O-40934 807638-71-7 Enquire
1-(4-(4-(benzo[b]thiophen-4-yl)piperazin-1-yl)butyl)-7-(4-(2... Impurity CS-T-93641 Not Available Enquire
1-(4-hydroxy-1-methyl-7-phenoxyisoquinolin-3-yl)ethan-1-one Impurity CS-O-36232 Not Available Enquire
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-qui... Impurity CS-O-41614 141290-02-0 Enquire
1-Cyclopropyl-6,7-dimethoxy-1,4-dihydro-4-oxo-quinoline-3-ca... Impurity CS-O-40575 1267935-86-3 Enquire
2-((1-(4-hydroxy-1-methyl-7-phenoxyisoquinolin-3-yl)ethylide... Impurity CS-O-36230 Not Available Enquire
2,7-bis(4-bromobutoxy) quinoline Impurity CS-O-35180 Not Available Enquire
2-[2-[(3S)-3-[3-[(1E)-2-(7-Chloroquinolin-2-yl)ethenyl]pheny... Impurity CS-T-51006 Not Available Enquire
2-tert-butyl-6,8-dihydroxy-1,3-dihydroisoquinolin-4-one Impurity CS-O-35480 2095853-42-0 Enquire
3-((Carboxymethyl)carbamoyl)-4-hydroxy-1-methyl-7-phenoxyiso... Impurity CS-O-36231 Not Available Enquire
3-Bromo-8-methoxyquinoline Impurity CS-N-05177 103030-27-9 Enquire
3-quinolinecarboxylic acid, 1-(6-amino-3,5-difluoro-2-pyridi... Impurity CS-EM-01716 1093185-35-3 Enquire
4-((6,7-dimethoxyquinolin-4-yl)amino)phenol Impurity CS-O-40386 748707-58-6 Enquire
4-(1-oxidobenzo[b]thiophen-4-yl)-1-(4-((2-oxo-1,2-dihydroqui... Impurity CS-O-35182 Not Available Enquire
4-(3-chloro-4-(3,3-dimethylureido)phenoxy)-7-methoxyquinolin... Impurity CS-O-39956 Not Available Enquire
4-(4-acetamido-3-chlorophenoxy)-7-methoxyquinoline-6-carboxa... Impurity CS-O-39930 Not Available Enquire
4-(4-aminophenoxy)-6-methoxyquinolin-7-ol Impurity CS-O-40387 1355031-15-0 Enquire
4-(6-bromo-2-methoxyquinolin-3-yl)-2-((dimethylamino)methyl)... Impurity CS-O-34381 Not Available Enquire
4’-(7-Dechloroquinolinyl) Piperaquine Impurity CS-T-73831 4039-00-3 Enquire
4-Hydroxyquinolin-2(1H)-one Impurity CS-M-26075 86-95-3 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline Intermediate CS-O-31497 118864-75-8 In Stock
1,2,3,4-Tetrahydroisoquinoline Intermediate CS-T-86916 91-21-4 In Stock
2-(4-fluorophenyl)-5-nitroquinoline Intermediate CS-O-55439 1374108-73-2 Enquire
2-(4-fluorophenyl)quinolin-5-amine Intermediate CS-O-55443 1374107-32-0 Enquire
2-(4-methoxyphenyl)-5-nitroquinoline Intermediate CS-O-55440 3025971-67-6 Enquire
2-(4-methoxyphenyl)quinolin-5-amine Intermediate CS-O-55442 ---- Enquire
2-(benzo[d][1,3]dioxol-5-yl)-4-chloroquinoline Intermediate CS-O-55434 97440-40-9 Enquire
2-chloroquinolin-5-amine Intermediate CS-O-55437 607377-99-1 Enquire
2-Methylquinolin-4-ol Intermediate CS-AC-12477 607-67-0 In Stock
3-(Diethylamino)-8-methyl-2(1H)-quinolinone Intermediate CS-T-91901 113225-33-5 In Stock
3-Benzyl-6-bromo-2-methoxyquinoline Intermediate CS-O-32114 654655-69-3 In Stock
3-phenylisoquinoline-1-carboxylic acid Intermediate CS-O-55444 92566-89-7 Enquire
3-Quinolinecarboxylic acid, 1,4-dihydro-6-[[methyl(2-methylp... Intermediate CS-O-55456 434908-00-6 Enquire
3-Quinolinecarboxylic acid, 1,4-dihydro-7-methyl-4-oxo-, eth... Intermediate CS-O-55451 77721-00-7 Enquire
3-Quinolinecarboxylic acid, 6-[(ethylphenylamino)sulfonyl]-1... Intermediate CS-O-55454 853139-10-3 Enquire
3-Quinolinecarboxylic acid, 6-[[(2-ethylphenyl)methylamino]s... Intermediate CS-O-55457 434907-96-7 Enquire
3-Quinolinecarboxylic acid, 6-[[(4-ethylphenyl)methylamino]s... Intermediate CS-O-55460 434907-95-6 Enquire
3-Quinolinecarboxylic acid, 7-chloro-1,4-dihydro-4-oxo-, met... Intermediate CS-O-55452 133514-23-5 Enquire
3-Quinolinecarboxylic acid, 7-fluoro-1,4-dihydro-4-oxo-, met... Intermediate CS-O-55453 1448259-82-2 Enquire
4,7- Dichloroquinoline Intermediate CS-O-01361 86-98-6 In Stock
4,8-Dichloroquinoline Intermediate CS-AC-12501 21617-12-9 In Stock
4-chloro-2-(4-fluorophenyl)quinoline Intermediate CS-O-55436 103914-43-8 Enquire
4-chloro-2-(4-methoxyphenyl)quinoline Intermediate CS-O-55435 21202-79-9 Enquire
4-chloro-2-(pyridin-3-yl)quinoline Intermediate CS-O-55432 954225-59-3 Enquire
4-chloro-2-(pyridin-4-yl)quinoline Intermediate CS-O-55433 888500-29-6 Enquire
4-Chloro-6-methoxyquinolin-7-ol Intermediate CS-M-57904 205448-31-3 Enquire
4-Chloro-7-methoxyquinoline-6-carboxamide Intermediate CS-O-32422 417721-36-9 In Stock
4-iodo-2,8-bis(trifluoromethyl)quinoline Intermediate CS-O-49429 150785-69-6 In Stock
5-(4-fluorophenyl)quinolin-8-ol Intermediate CS-O-55392 1539121-07-7 Enquire
5-(4-methoxyphenyl)quinolin-8-ol Intermediate CS-O-55393 675880-72-5 Enquire
5,6,7,8-Tetrahydroquinoline Intermediate CS-AC-12498 10500-57-9 In Stock
5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline Hydrochloride Intermediate CS-O-57676 73075-47-5 Enquire
5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Aci... Intermediate CS-BX-01103 1289646-93-0 In Stock
5,7-Dichloro-2-trityl-1,2,3,4-tetrahydroisoquinoline Intermediate CS-O-57658 1289646-72-5 Enquire
5,7-Dichloro-2-trityl-1,2,3,4-tetrahydroisoquinoline-6-carbo... Intermediate CS-O-57659 1194550-56-5 Enquire
5,7-Dichloro-8-hydroxyquinoline Intermediate CS-O-06308 773-76-2 In Stock
5,7-Dinitroquinolin-8-ol Intermediate CS-ED-27069 1084-32-8 In Stock
5-Hydroxy-3,4-dihydro-2(1H)-quinolinone Intermediate CS-T-27196 30389-33-4 In Stock
6,7-Dimethoxy-3,4-Dihydroisoquinoline Intermediate CS-EL-00945 3382-18-1 In Stock
6,7-Dimethoxy-4-(4-aminophenoxy)quinoline Intermediate CS-O-32099 190728-25-7 In Stock
6,7-dimethoxyquinolin-4(1H)-one Intermediate CS-O-49222 127285-54-5 Enquire
6-amino-4-(3-chloro-4-(pyridin-2-ylmethoxy)phenylamino)-7-et... Intermediate CS-O-32427 848139-78-6 In Stock
6-Aminoisoquinoline Intermediate CS-M-52909 23687-26-5 In Stock
6-Hydroxy-3,4-dihydro-1H-quinoline-2-one Intermediate CS-O-05590 54197-66-9 In Stock
6-Isopropylisoquinoline Intermediate CS-O-47532 790304-84-6 Enquire
6-Methoxy8-nitroquinoline Intermediate CS-DJ-00721 85-81-4 In Stock
7-bromo-2-(tert-butoxycarbonyl)-5-chloro-1,2,3,4-tetrahydroi... Intermediate CS-O-49951 2832100-74-8 Enquire
7-Bromo-4-chloro-2-methylquinoline Intermediate CS-O-49628 143946-45-6 Enquire
7-Chloro-4-(2-methyl-1-pyrrolidinyl)-quinoline Intermediate CS-T-71832 6281-58-9 In Stock
7-chloroquinolin-4(1H)-one Intermediate CS-Q-00247 86-99-7 In Stock
8,9-Difluoro-5-methyl-1-oxo-1,5,6,7-tetrahydropyrido[3,2,1-i... Intermediate CS-O-16527 80076-47-7 In Stock
Ethyl 3,4-dihydro-7-hydroxy-1(2H)-quinolinebutanoate Intermediate CS-O-51675 185213-71-2 Enquire
Methyl 1,4-dihydro-6-methoxy-4-oxoquinoline-3-carboxylate Intermediate CS-O-55450 942227-34-1 Enquire
N,N-dimethyl-5,6,7,8-tetrahydrothieno[2,3-b]quinolin-4-amine Intermediate CS-O-52088 Not Available Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5,7-Dichloro-8-hydroxyquinoline-O-beta-D-glucuronide Glucuronide CS-T-52693 40951-47-1 In Stock
5,7-Dichloro-8-quinolinol glucuronide intermediate Glucuronide CS-O-48740 Not Available Enquire
5-Chloro-8-hydroxyquinoline β-D-glucuronide Glucuronide CS-DF-00050 65851-39-0 Enquire
8-hydroxyquinoline-Beta-d-glucuronic Acid, Sodium Glucuronide CS-AD-00752 207728-71-0 Enquire
Desquinolinylcabozantinib glucuronide Glucuronide CS-O-46220 1628530-43-7 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-1,2,3,4-Tetrahydroisoquinoline-1-Carboxylic Acid Fine Chemicals CS-MM-50763 151004-92-1 In Stock
2,4-dichloro-6-fluoroquinoline Fine Chemicals CS-ED-42053 406204-74-8 Enquire
4,7-Dimethoxy-6-quinolinecarboxamide Fine Chemicals CS-O-54550 2839104-94-6 Enquire
4-Chloro-6,7-dihydroxyquinoline Fine Chemicals CS-ED-00467 1256637-72-5 In Stock
4-chloro-7-methoxyquinolin-6-ol Fine Chemicals CS-DV-02739 205448-74-4 In Stock
5-Bromo-2-chloroquinoline Fine Chemicals CS-ED-42075 99455-13-7 Enquire
5-Chloro-2-Methylquinolin-8-ol Fine Chemicals CS-DH-00016 24263-93-2 In Stock
6,7-Dimethoxyisoquinoline Fine Chemicals CS-AC-10942 15248-39-2 In Stock
6-Bromo-4-chloro-3-quinolinecarbonitrile Fine Chemicals CS-ED-41864 364793-54-4 Enquire
6-Methoxyquinolin-8-amine Fine Chemicals CS-M-42449 90-52-8 In Stock
7-Chloro-4-(piperazin-1-yl)quinoline Fine Chemicals CS-O-05513 837-52-5 In Stock
7-Chloro-4-hydroxyquinoline-3-carboxylic acid Fine Chemicals CS-O-53643 86-47-5 Enquire
7-Hydroxyquinoline Fine Chemicals CS-M-03671 580-20-1 In Stock
8-Bromo-5-methoxy-1,2,3,4-tetrahydroisoquinoline Fine Chemicals CS-O-49980 392660-50-3 Enquire
8-Bromoisoquinolin-5-ol Fine Chemicals CS-O-51670 1057962-05-6 Enquire
Ethyl 4,7-dichloroquinoline-3-carboxylate Fine Chemicals CS-O-59782 19499-19-5 Enquire
Ethyl 4-Hydroxyquinoline-3-Carboxylate Fine Chemicals CS-T-18983 52980-28-6 In Stock
Isoquinoline Fine Chemicals CS-T-30055 119-65-3 In Stock
Isoquinoline-6-carboxylic acid Fine Chemicals CS-O-16464 106778-43-2 In Stock
Quinolin-6-ylmethanamine dihydrochloride Fine Chemicals CS-ED-41870 1185694-50-1 Enquire
(5R)-5-Amino-5,6-dihydro-4H-imidazo[4,5,1-ij]quinolin-2(1H)-... Fine Chemicals CS-O-38479 132875-37-7 Enquire
(R)-(+)-1-(2-Diphenylphosphino-1-naphthyl)isoquinoline Fine Chemicals CS-BX-01050 149341-34-4 Enquire
(S)-(−)-1-(2-Diphenylphosphino-1-naphthyl)isoquinoline Fine Chemicals CS-BX-01051 149341-33-3 Enquire
1-(1,2,3,4-tetrahydroisoquinolin-3-yl)ethanol Fine Chemicals CS-O-34989 2107805-46-7 Enquire
1-(4-bromobutyl)-7-(4-chlorobutoxy) quinolin-2(1H)-one Fine Chemicals CS-O-39796 2247155-46-8 Enquire
1,2,3,4-Tetrahydroisoquinoline-4,5,8-triol hydrochloride Fine Chemicals CS-O-35257 15052-02-5 Enquire
1-CYCLOPROPYL-6-FLUORO-5-METHYL-7-(3-METHYLPIPERAZIN-1-YL)-4... Fine Chemicals CS-ZJ-12657 161967-81-3 Enquire
2,4-Dihydroxy-3-nitroquinoline Fine Chemicals CS-MM-06101 15151-57-2 Enquire
2-[[(4RS)-4[(7-chloroquinolin-4yl)amino]pentyl]-aminoethan-1... Fine Chemicals CS-O-34633 Not Available Enquire
2-Amino-3,4-dimethyl-3H-imidazo[4,5-f]quinoline Fine Chemicals CS-TA-08918 77094-11-2 Enquire
2-chloro-5,6,7,8-tetrahydro-3-quinolinecarboxylic acid Fine Chemicals CS-ZB-14344 99058-34-1 Enquire
2-Fluoroquinolin-8-ol Fine Chemicals CS-O-37069 142363-58-4 Enquire
2-methoxyquinolin-7-amine Fine Chemicals CS-ZB-18844 1354222-16-4 Enquire
3-(2-fluorophenyl)-10-(7-methoxy-2-oxo-1,2-dihydroquinolin-3... Fine Chemicals CS-O-38070 2109420-88-2 Enquire
3,6-Dibromoquinoline Fine Chemicals CS-TA-42514 69268-39-9 Enquire
3-Hydroxy-2,9,10-trimethoxy-5,6-dihydroisoquinolino-[3,2-a]i... Fine Chemicals CS-MM-12377 3621-38-3 Enquire
3-methylquinoline-8-carboxylic acid Fine Chemicals CS-O-36579 94975-85-6 Enquire
4-Acetylisoquinoline Fine Chemicals CS-O-38038 40570-74-9 Enquire
4-bromoisoquinolin-5-ol Fine Chemicals CS-ED-02036 651310-41-7 Enquire
4-chloro-6-fluoroquinolin-8-amine Fine Chemicals CS-O-38145 190140-15-9 Enquire
4-Fluoro-5-{[(2R)-2-methyl-1,4-diazepan-1-yl]sulfonyl}isoqui... Fine Chemicals CS-O-37142 Not Available Enquire
4-Fluoroquinoline Fine Chemicals CS-T-54935 394-70-7 Enquire
5,7-Dichloroquinolin-8-ol Fine Chemicals CS-P-00075 773-76-2 Enquire
5-bromo-8-chloroisoquinolin-3-amine Fine Chemicals CS-O-41186 1338254-31-1 Enquire
5-chloroquinolin-4-ol Fine Chemicals CS-ED-01439 23443-05-2 Enquire
6-Acetylquinoline Fine Chemicals CS-DL-00083 73013-68-0 Enquire
6-Bromo-1-(methylsulfonyl)-1,2,3,4-tetrahydroquinoline Fine Chemicals CS-MM-68678 727673-73-6 Enquire
6-bromo-5-methoxyisoquinolin-1(2H)-one Fine Chemicals CS-O-37340 1548942-27-3 Enquire
6-Fluoro-1-(4-fluorophenyl)-7-(4-methylpiperazin-1-yl)-4-oxo... Fine Chemicals CS-MM-12462 98106-17-3 Enquire
6-Fluoro-2-(2-fluoro-[1,1-biphenyl]-4-yl)-3-methylquinoline-... Fine Chemicals CS-MM-09675 96187-53-0 Enquire
7-(Trifluoromethyl)-3,4-dihydroisoquinolin-1(2H)-one Fine Chemicals CS-MM-28775 1365759-12-1 Enquire
7-(trifluoromethyl)isoquinolin-1-amine Fine Chemicals CS-ED-01474 1196147-73-5 Enquire
8-[3-(1-ACETYL-PIPERIDIN-4-YL)-PROPIONYL]-1,2,5,6-TETRAHYDRO... Fine Chemicals CS-O-37129 Not Available Enquire
8-Amino-6-fluoro-4-methylquinoline Fine Chemicals CS-O-38146 64993-16-4 Enquire
8-bromo-6-fluoro-2-methylquinolin-4-ol Fine Chemicals CS-O-40982 Not Available Enquire
8-Hydroxyquinoline-4-carbaldehyde Fine Chemicals CS-ED-01218 14510-07-7 Enquire
8-Nitrosquinoline Fine Chemicals CS-O-38147 153822-40-3 Enquire
9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo-[4,5-g]isoquinolino[... Fine Chemicals CS-MM-13121 2086-83-1 Enquire
methyl 1-(acetoxymethyl)-4-hydroxy-6-phenoxyisoquinoline-3-c... Fine Chemicals CS-O-37251 1959587-35-9 Enquire
Methyl 2-aminoquinoline-3-carboxylate Fine Chemicals CS-O-36097 75353-50-3 Enquire
tert-Butyl 7-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate Fine Chemicals CS-MM-27050 258515-65-0 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(4-methoxybenzyl)-2-nitrosodecahydroisoquinoline Nitrosamine CS-O-53829 ---- Enquire
DL-DOPA tetrahydroisoquinoline Nitroso impurity Nitrosamine CS-O-57563 ---- Enquire
N-(7-chloroquinolin-4-yl)-N-(5-(2-hydroxyethylamino)pentan-2... Nitrosamine CS-O-59823 ---- Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
8-Nitroquinoline Pesticide Standards CS-DK-00406 607-35-2 In Stock


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3,4-Dihydro-6,7-di(methoxy-d3)-Isoquinoline Hydrochloride Stable Isotope Reagent CS-EO-03896 1783808-87-6 Enquire
6-Aminoquinoline-D6 Stable Isotope Reagent CS-T-103045 580-15-4(Unlabelled) Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Dichloro-6-fluoroisoquinoline Building Blocks CS-O-46873 1041423-26-0 Enquire
1-hydroxyisoquinoline-5-carboxylic acid Building Blocks CS-O-45042 212374-18-0 Enquire
2-Chloro-4-((6,7-dimethoxyquinolin-4-yl)oxy)aniline Building Blocks CS-O-59670 286371-44-6 Enquire
3-​Methyl-​6-​quinolinesulfonyl Chloride Building Blocks CS-T-95900 1780572-69-1 Enquire
3,7-DICHLORO-1-CYCLOPROPYL-2-FLUORO-6-HYDROXYQUINOLIN-4(1H)-... Building Blocks CS-O-48701 Not Available Enquire
3-Bromo-7-nitroquinoline Building Blocks CS-O-47537 1354221-07-0 Enquire
4-​Chloro-​7-​(3-​chloropropoxy)​-​3-​cyano-​6-​methoxyquino... Building Blocks CS-T-95861 214470-68-5 Enquire
4-fluoroisoquinoline-5-sulfonyl chloride Building Blocks CS-BX-01332 194032-33-2 Enquire
6'-bromo-2',3'-dihydro-1'H-spiro[cyclobutane-1,4'-isoquinoli... Building Blocks CS-O-48762 1780107-29-0 Enquire
6'-bromo-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-isoquinol... Building Blocks CS-O-48761 2167621-83-0 Enquire
6-Bromo-4,4-dimethyl-2,3-dihydroisoquinolin-1-one Building Blocks CS-O-48733 1396777-58-4 Enquire
6-Bromoisoquinoline-1,3-diol Building Blocks CS-O-48730 1956382-48-1 Enquire
6-Fluoro-2-phenyl-4-quinolinecarboxylic acid Building Blocks CS-O-55368 1647-88-7 Enquire
6-Methoxy-2-methyl-4-quinolinecarboxylic acid Building Blocks CS-O-55362 78533-10-5 Enquire
6-Quinolinepropanoic acid Building Blocks CS-O-46115 476660-20-5 Enquire
7-Bromoquinolin-5-ol Building Blocks CS-O-44499 1261677-80-8 Enquire
7-Chloro-4- Methoxyquinoline Building Blocks CS-O-54003 26707-52-8 In Stock
8-(Benzyloxy)-5-bromoquinoline Building Blocks CS-O-55352 202259-06-1 Enquire
Ethyl 7-Chloro-1-cyclopropyl-6-fluoro-4-oxoquinoline-3-carbo... Building Blocks CS-T-102315 86483-54-7 Enquire
methyl 7-methoxy-4-oxo-1,4-dihydroquinoline-6-carboxylate Building Blocks CS-T-94536 205448-65-3 Enquire
N-Methyl-1-quinolin-4-ylmethanamine Building Blocks CS-T-95825 157610-83-8 Enquire
Quinoline-2-sulfonyl chloride Building Blocks CS-O-46283 193634-32-1 Enquire
tert-butyl (3-chloro-6-fluoroisoquinolin-5-yl)carbamate Building Blocks CS-O-46874 1841079-96-6 Enquire
2-phenylquinoline Building Blocks CS-ED-02263 612-96-4 Enquire
4-Bromoisoquinoline-1-carboxylic Acid Building Blocks CS-TA-64851 1179149-25-7 Enquire
4-chloroquinoline-2-carboxylic Acid Building Blocks CS-TB-06234 15733-82-1 Enquire
7-(Difluoromethyl)-1,2,3,4-tetrahydroquinoline Building Blocks CS-T-93966 1783624-20-3 Enquire
Quinoline-4-sulfonyl chloride Building Blocks CS-O-46284 952651-40-0 Enquire
S)-N-Fmoc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid Building Blocks CS-M-29737 136030-33-6 Enquire
Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate Building Blocks CS-ZE-19509 893566-75-1 Enquire


Chiral

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
R-1,2,3,4-Tetrahydro-3-Isoquinolinecarboxylic Acid Chiral CS-BB-00042 103733-65-9 In Stock


Dyes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Quinoline Yellow Dyes CS-O-43149 8004-92-0 In Stock