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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Pyrazol, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Pyrazol 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 Pyrazol-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.

Pyrazol Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1,3,5-Trimethylpyrazol-4-yl)boronic Acid-d3 Stable Isotopes CS-T-96424 Not Available Enquire
(2E)-3-(1-Methyl-1H-pyrazol-4-yl)-2-propenoic Acid-d3 Stable Isotopes CS-T-99983 689251-97-6(Unlabelled) Enquire
(R)-3-(4-Phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d... Stable Isotopes CS-T-98817 Not Available Enquire
1-((R)-3-(4-Amino-3-(4-(phenoxy-D5)phenyl)-1H-pyrazolo[3,4-d... Stable Isotopes CS-EO-02393 2068022-09-1 Enquire
1-(2-Aminoethyl)-3-nitro-1H-pyrazole-d4 Hydrochloride Stable Isotopes CS-T-100874 Not Available Enquire
1,5-Dimethyl-1H-pyrazole-4-sulfonamide-D3 Stable Isotopes CS-T-102408 88398-55-4(Unlabelled) Enquire
1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-... Stable Isotopes CS-T-96429 Not Available Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester-... Stable Isotopes CS-T-102828 133261-07-1(Unlabelled) Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid-d3 Stable Isotopes CS-T-102829 1046784-60-4 Enquire
1-Methyl-4-pyrazoleboronic Acid-d3 Stable Isotopes CS-T-102227 Not Available Enquire
2-(2-Chlorophenyl)-4-(3-(dimethylamino)phenyl)-5-methyl-1H-p... Stable Isotopes CS-T-100637 Not Available Enquire
2-(3,4-Dimethylphenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one... Stable Isotopes CS-T-100386 Not Available Enquire
3-​(1H-​Pyrazol-​1-​yl)​alanine-d3 Stable Isotopes CS-T-103062 2734-48-7(Unlabelled) Enquire
3-(4-Chlorophenyl)-4,5-dihydro-N'-(1-iminoethyl)-4-phenyl-N-... Stable Isotopes CS-T-101717 Not Available Enquire
3-(5-Amino-3-methyl-1H-pyrazol-1-yl)-Benzoic Acid-d4 Hydroch... Stable Isotopes CS-T-101904 Not Available Enquire
3,4-Dimethylpyrazole Phosphate-13C Stable Isotopes CS-T-101072 Not Available Enquire
3-Amino-5-methylpyrazole 13C4,15N2 Stable Isotopes CS-EK-00994 31230-17-8 unlabeled Enquire
4,6-Dimethoxy-1H-pyrazolo[3,4-d]pyrimidine-13C,15N2 Stable Isotopes CS-T-100416 Not Available Enquire
4-[5,6-Dihydro-2-[3-methyl-1-(1-methylethyl)-1H-1,2,4-triazo... Stable Isotopes CS-T-101535 Not Available Enquire
4-Bromo-1-(2-chloroethyl)-1H-pyrazole-D4 Stable Isotopes CS-T-100738 Not Available Enquire
5-[4-Bromo-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]-2-c... Stable Isotopes CS-T-102834 174514-08-0(Unlabelled) Enquire
5-Methoxy-1H-pyrazol-3-amine Hydrochloride-d3 Stable Isotopes CS-T-100081 110884-53-2(Unlabelled) Enquire
5-Methoxy-d3-1-methyl-1H-pyrazole-4-sulfonyl Chloride Stable Isotopes CS-T-99712 Not Available Enquire
5-Methyl-2-(1H-pyrazol-1-yl)-d3-1H-indole Stable Isotopes CS-T-98635 Not Available Enquire
B-[1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl]boronic Acid... Stable Isotopes CS-T-96426 Not Available Enquire
b-Cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl... Stable Isotopes CS-T-96435 Not Available Enquire
Mixture of (1,3-Dimethylpyrazole-D3 + 1,5-Dimethylpyrazole-D... Stable Isotopes CS-T-102410 Not Available Enquire
N-(2,3-Dimethylphenyl)-3,5-dimethyl-1-(phenylmethyl)-1H-pyra... Stable Isotopes CS-T-100396 Not Available Enquire
N,N’-Bis-Boc-1-guanylpyrazole-13C,15N2 Stable Isotopes CS-T-101818 1346606-42-5 Enquire
Pyrazolam-d3 Stable Isotopes CS-T-96400 39243-02-2(Unlabelled) Enquire
Pyrazolosalicyloyl Imide-d3 Stable Isotopes CS-T-102098 Not Available Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(Difluoromethyl)-1-β-D-glucopyranosyl-N-(3′,4′,5′-trifluor... Metabolite CS-ED-42077 2056235-51-7 Enquire
N-Methylpyrazole-4-carboxamide Metabolite CS-O-15650 1154383-52-4 In Stock
Pyrazole 10 Metabolite CS-B-00345 373607-06-8 Enquire
Pyrazole 25 Metabolite CS-B-00344 936134-04-2 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-N-(5-(2-(2,5-difluorophenyl) pyrrolidin-1-yl)pyrazolo[1,... Impurity CS-O-60585 ---- Enquire
(S)-3-(4-Bromo-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile Impurity CS-O-56859 2183286-19-1 Enquire
1-(3,4-dichloro-1-methylpyrazole-5-sulfonyl)-3-(4,6-dimethyl... Impurity CS-O-60817 ---- Enquire
1-[6-Amino-9-(3,4-dihydroxy-5-hydroxymethyl-tetrahydrofuran-... Impurity CS-O-47370 Not Available Enquire
16ß-Hydroxy-2’H-5a-androst-2-eno[3,2-c]pyrazol-17-one Impurity CS-B-00364 1173998-85-0 Enquire
2-((1,4-dimethyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)fluorom... Impurity CS-O-43171 Not Available Enquire
2-((3bS,4aR)-5,5-difluoro-3-(trifluoromethyl)-3b,4,4a,5-tetr... Impurity CS-O-52411 Not Available Enquire
2-((3bS,4aR)-5-oxo-3-(trifluoromethyl)-3b,4,4a,5-tetrahydro-... Impurity CS-O-52410 Not Available Enquire
2-(1-Ethyl-1H-pyrazol-4-yl)[1,2,4]triazolo[1,5-c]quinazoline Impurity CS-O-57102 1005691-67-7 Enquire
2-(1-Methyl-1H-pyrazol-4-yl)[1,2,4]triazolo[1,5-c]quinazolin... Impurity CS-O-57100 1005643-71-9 Enquire
2-(1-Methyl-1H-pyrazol-5-yl)[1,2,4]triazolo[1,5-c]quinazolin... Impurity CS-O-57112 1005692-07-8 Enquire
2-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimid... Impurity CS-T-74988 428854-24-4 In Stock
2-[1-[(4-Chlorophenoxy)methyl]-1H-pyrazol-5-yl][1,2,4]triazo... Impurity CS-O-57099 1005562-82-2 Enquire
3-(3,3,3-trifluoro-2,2-dimethylpropoxy)-1H-pyrazole Impurity CS-O-45076 2229861-15-6 In Stock
3-(3,4-Dichlorophenyl)-5-[3-(3-pyridinyl)phenyl]-2-(trifluor... Impurity CS-O-52228 1832592-68-3 Enquire
3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1... Impurity CS-O-35292 ---- Enquire
3-Aminopyrazole-4-carboxamide Hemisulfate Impurity CS-O-07140 27511-79-1 In Stock
3-chloro-5-(N-((4,6-dimethoxypyrimidin-2-yl)carbamoyl)sulfam... Impurity CS-O-60814 ---- Enquire
3'-Hydroxy-2’H-5a-androst-2-eno[3,2-c]pyrazol-17-one Impurity CS-B-00362 1173998-80-5 Enquire
4a/ß-Hydroxy-2’H-5a-androst-2-eno[3,2-c]pyrazol-17-one Impurity CS-B-00359 Not Available Enquire
5-Acetyl-N-[(1S)-2-[3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-... Impurity CS-O-34554 1297537-33-7 In Stock
5-Amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trich... Impurity CS-O-59883 1393738-20-9 Enquire
5-Amino-4-[(chlorodifluoromethyl)sulfinyl]-1-[2,6-dichloro-4... Impurity CS-O-59880 134403-22-8 Enquire
5-Amino-4-[(dichlorofluoromethyl)sulfinyl]-1-[2,6-dichloro-4... Impurity CS-O-59881 134403-23-9 Enquire
5-Fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-car... Impurity CS-O-40932 1350653-26-7 Enquire
5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one Impurity CS-M-56214 19735-89-8 In Stock
7-chloro-5-propylpyrazolo[1,5-a]pyrimidine Impurity CS-O-48883 244127-41-1 In Stock
Bis (6,7-dihydro-5H-pyrazolol[1,2,4] triazolium-6-yl) disulp... Impurity CS-O-45030 141499-33-4 Enquire
Bispyrazolone Impurity CS-T-07241 7477-67-0 In Stock
ethyl 6-chloro-5,7-dimethylpyrazolo[1,5-a]pyrimidine-3-carbo... Impurity CS-O-48894 1035835-21-2 In Stock
pinoxaden 9-amino-1,2,4,5-tetrahydro-pyrazolo-[1,2-d][1,4,5]... Impurity CS-O-48773 Not Available Enquire
Pyrazolo Minocycline Impurity CS-T-60908 182004-72-4 In Stock
Pyrazolo Minocycline hydrochloride Impurity CS-O-46963 1402209-08-8 Enquire
tert-Butyl (S)-3-(3-(2,2-dimethoxyethyl)ureido)-2-(4-fluoro-... Impurity CS-O-60675 2212021-60-6 Enquire
tris((1,4-dimethyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)oxy)m... Impurity CS-O-43170 2642167-17-5 Enquire
(1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)... Impurity CS-O-39331 Not Available Enquire
(1-Methyl-1H-pyrazol-3-yl)acetic acid Impurity CS-M-28022 1177318-00-1 Enquire
(2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-p... Impurity CS-O-38701 1821705-03-6 Enquire
(3S)-N-(5-Chloropyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxy-1-p... Impurity CS-O-39034 2226370-52-9 Enquire
(4S)-1-(tert-butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyra... Impurity CS-O-38438 Not Available Enquire
(R)-N-(3-(4-phenoxyphenyl)-1-(piperidin-3-yl)-1Hpyrazolo[ Impurity CS-O-37344 2064175-43-3 Enquire
(S)-tert-butyl (1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-y... Impurity CS-O-38810 2415967-06-3 Enquire
1-(1-Ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-... Impurity CS-M-24044 1029716-44-6 Enquire
1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile Impurity CS-DL-00546 256376-65-5 Enquire
1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylic a... Impurity CS-DL-00545 256376-59-7 Enquire
1-(4-methoxyphenyl)-7a-morpholino-7-oxo-6-(4-(2-oxopiperidin... Impurity CS-O-39330 Not Available Enquire
1-(oxan-2-yl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyr... Impurity CS-EM-02808 1003846-21-6 Enquire
1-(tert-Butyl) 2-methyl (2R,4R)-4-(4-(3-methyl-1-phenyl-1H-p... Impurity CS-O-40333 Not Available Enquire
1-(tert-Butyl) 2-methyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-p... Impurity CS-O-40332 Not Available Enquire
1-(tert-butyl)-3-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine Impurity CS-O-38782 180903-16-6 Enquire
1H-pyrazole-3-carboximidamide hydrochloride Impurity CS-TA-55947 166197-22-4 Enquire
1-Methyl-1H-pyrazol-4-ylamine dihydrochloride Impurity CS-M-10154 69843-13-6 Enquire
1-phenyl-5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole Impurity CS-O-40866 515845-18-8 Enquire
2-(1-benzyl-1H-pyrazol-4-yl)ethan-1-ol Impurity CS-O-37912 1518647-75-0 Enquire
2-(4-Methoxy-benzyl)-2H-pyrazol-3-ylamine Impurity CS-M-09724 3528-45-8 Enquire
2-chloro-4-(1H-pyrazol-3-yl)benzonitrile Impurity CS-T-93877 1297537-37-1 Enquire
3-(6,7-Dihydro-1-methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]... Impurity CS-T-53103 479074-07-2 Enquire
3-(cyanomethyl)3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyr... Impurity CS-O-38527 Not Available Enquire
3,5-Dimethyl-1-phenyl-1H-pyrazole-4-carboxylic acid Impurity CS-M-28144 61226-19-5 Enquire
3-bromo-1-(5-bromo-3-chloropyridin-2-yl)-N-(4-chloro-2-methy... Impurity CS-O-39462 500011-53-0 Enquire
3-Bromo-4-methyl-1H-pyrazole-5-carboxylic Acid Impurity CS-T-94020 929554-40-5 Enquire
3-Trifluoromethyl-5-(p-tolyl)-1H-pyrazole Impurity CS-T-45387 219986-64-8 Enquire
4-Amino-1-methyl-3-propyl-1H-pyrazole-5-carboxamide Hydrochl... Impurity CS-T-03054 247584-10-7 Enquire
4-ethoxy-N,N-bis(2-hydroxyethyl)-3-(1-methyl-7-oxo-3-propyl-... Impurity CS-O-35207 226956-43-0 Enquire
5-(2-Ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo... Impurity CS-T-22410 479074-06-1 Enquire
5-Chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde Impurity CS-M-16646 947-95-5 Enquire
5-Chloro-N-[4-[[2,3-dihydro-5-(methoxymethyl)-1-methyl-3-oxo... Impurity CS-T-70042 1805818-06-7 Enquire
5-cyclopropyl-3-(3-methyl-1-phenyl-1H-thieno[2,3-c]pyrazol-5... Impurity CS-O-38775 1111430-79-5 Enquire
5-methyl-4,4-bis(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)-2-... Impurity CS-ED-00499 68195-63-1 Enquire
6-(4-Aminophenyl)-4,5,6,7-tetrahydro-1-(4-methoxyphenyl)-7-o... Impurity CS-T-66518 1466571-07-2 Enquire
Ethyl-1-(4-chlorophenyl)-7-oxo-6-[4-(2-oxopiperidin-1-yl)phe... Impurity CS-O-38291 2029205-62-5 Enquire
methyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)p... Impurity CS-O-39332 Not Available Enquire
methyl 2-ethylpyrazole-3-carboxylate Impurity CS-ZJ-07295 119458-46-7 Enquire
N-((R)-1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-... Impurity CS-O-37396 2407645-49-0 Enquire
tert-Butyl (2S,4R)-4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)p... Impurity CS-P-08384 1404559-22-3 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-1-(6-(4-Fluoro-1H-pyrazol-1-yl)pyridin-3-yl)ethan-1-amin... Intermediate CS-ED-41876 1980023-97-9 Enquire
1-(4-fluorophenyl)-5-methyl-1H-pyrazol-3-amine Intermediate CS-O-49656 1247053-40-2 Enquire
1,3-dimethyl-1H-pyrazole-4-sulfonamide Intermediate CS-O-45632 88398-53-2 In Stock
1-Methyl-3-((methylamino)methyl)-1H-pyrazole Intermediate CS-O-57759 871825-57-9 Enquire
2-((3bR,4aS)-5,5-Difluoro-3-(trifluoromethyl)-3b,4,4a,5-tetr... Intermediate CS-ED-41911 2189680-65-5 Enquire
2-(3,4-dimethylphenyl)-5-methyl-1H-pyrazol-3(2H)-one Intermediate CS-O-31942 277299-70-4 In Stock
2,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid Intermediate CS-O-49653 933694-89-4 Enquire
3-(Difluoromethyl)-1H-pyrazole-4-carboxylic Acid Intermediate CS-T-91711 151734-02-0 In Stock
3-Aminopyrazole Intermediate CS-T-03410 1820-80-0 In Stock
3-Bromo-1,5-dimethylpyrazole Intermediate CS-O-49760 5744-80-9 Enquire
3-Bromopyrazolo[1,5-c]pyrimidine Intermediate CS-O-54684 1207853-39-1 Enquire
3-Chloromethyl-1-methylpyrazole Intermediate CS-O-49831 84547-64-8 Enquire
3-Methyl-1-propylpyrazole-4-carbaldehyde Intermediate CS-O-49639 933778-28-0 Enquire
4-(2-Methylphenyl)-5-phenyl-1H-pyrazol-3-amine Intermediate CS-O-49858 1231747-90-2 Enquire
4-Amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidine Intermediate CS-M-53963 151266-23-8 In Stock
4-Iodo-1H-pyrazole-1-acetonitrile Intermediate CS-O-49531 955965-81-8 Enquire
7-Bromopyrazolo[5,1-b]thiazole Intermediate CS-O-57138 1824091-41-9 Enquire
B-[1-(2-Methoxy-1,1-dimethylethyl)-1H-pyrazol-4-yl]boronic a... Intermediate CS-O-49533 1695506-98-9 Enquire
ethyl 1-methyl-1H-pyrazole-4-carboxylate Intermediate CS-EM-02629 85290-80-8 In Stock
Ethyl 2-((3bS,4aR)-3-(trifluoromethyl)-4,4a-dihydrospiro[cyc... Intermediate CS-O-52391 2375020-09-8 Enquire
tert-butyl 3-methyl-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5... Intermediate CS-O-49839 733757-77-2 Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2S,3S,4S,5R,6R)-6-((1-(4,6-dimethylpyrimidin-2-yl)-5-methyl... Glucuronide CS-O-33741 Not Available Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(3-Chlorophenyl)-3-methyl-4-[3-(trifluoromethyl)phenyl]-1H... Fine Chemicals CS-EL-12464 477708-95-5 In Stock
1H-Pyrazole-4-carboxamide Fine Chemicals CS-M-47271 437701-80-9 In Stock
1-isopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-... Fine Chemicals CS-O-54761 1071496-88-2 Enquire
1-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-... Fine Chemicals CS-O-52743 2304634-11-3 Enquire
1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-... Fine Chemicals CS-O-52745 948593-45-1 Enquire
3,5-Pyrazoledicarboxylic acid monohydrate Fine Chemicals CS-O-53167 303180-11-2 Enquire
3-Methylpyrazole Fine Chemicals CS-M-57713 1453-58-3 In Stock
4-(Bromomethyl)-1-methyl-1H-pyrazole Fine Chemicals CS-O-54659 762237-02-5 Enquire
4-(dihydroxymethoxy)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-... Fine Chemicals CS-O-53894 ---- Enquire
4-Bromo-3-cyclopropyl-5-methyl-1H-pyrazole Fine Chemicals CS-BL-00061 1287752-84-4 Enquire
4-Bromo-3-methoxy-1-methyl-1H-pyrazole Fine Chemicals CS-BL-00114 1350323-85-1 Enquire
5-(4-phenoxyphenyl)-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-O-60751 1266461-63-5 Enquire
5-Amino-1H-pyrazole-4-carboxamide Fine Chemicals CS-EM-01005 5334-31-6 In Stock
5-Fluoro-1,3-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaboro... Fine Chemicals CS-O-52744 1586046-21-0 Enquire
N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-... Fine Chemicals CS-O-53893 ---- Enquire
1-(1-(tert-butoxycarbonyl)azetidin-3-yl)-1h-pyrazole-4-carbo... Fine Chemicals CS-O-36717 1785380-40-6 Enquire
1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxamide Fine Chemicals CS-ZH-16460 256376-62-2 Enquire
1,2-Dihydro-5-methyl-1-phenyl-3H-pyrazol-3-one Fine Chemicals CS-ZB-38926 14575-62-3 Enquire
1-Benzyl-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-M-09303 401647-24-3 Enquire
2-((tert-butoxycarbonyl)amino)-3-(1-methyl-1H-pyrazol-5-yl)p... Fine Chemicals CS-O-37815 1379855-99-8 Enquire
2-(3-Trifluoromethylphenyl)-2H-pyrazol-3-ylamine Fine Chemicals CS-ZI-11404 78119-07-0 Enquire
2-[(tert-butoxy)carbonyl]amino-3-(1-methyl-1H-pyrazol-3-yl)p... Fine Chemicals CS-O-37816 1544088-89-2 Enquire
2-amino-3-(1-methyl-1H-pyrazol-3-yl)propanoic acid Fine Chemicals CS-O-37817 1161002-10-3 Enquire
2-Bromo-7-chloropyrazolo[1,5-a]pyrimidine Fine Chemicals CS-MM-51131 1203705-58-1 Enquire
2-Chloro-4-(1H-Pyrazol-5-Yl)Benzonitrile Fine Chemicals CS-ZE-26522 1297537-37-1 Enquire
3-Isobutyl-1-methyl-4-nitro-1H-pyrazole-5-carboxylic acid Fine Chemicals CS-ZH-28632 1004455-71-3 Enquire
3-methyl-1H,4H,5H,6H,7H-pyrazolo[3,4-c]pyridine Fine Chemicals CS-O-36444 1466006-16-5 Enquire
4-bromo-1-(1-ethoxyethyl)-1H-pyrazole Fine Chemicals CS-ED-01952 1024120-52-2 Enquire
4-Bromo-1H-pyrazole Fine Chemicals CS-M-16896 2075-45-8 Enquire
4-methyl-1H-pyrazole-5-carbaldehyde Fine Chemicals CS-O-38423 1284220-50-3 Enquire
5-((4-(3-Carbamoyl-1-(4-methoxyphenyl)-7-oxo-4,5-dihydro-1H-... Fine Chemicals CS-TA-86542 2206825-87-6 Enquire
5-(Difluoromethoxy)-1H-pyrazol-3-amine Fine Chemicals CS-MM-28610 1160822-72-9 Enquire
5-amino-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]-4-(ethyl... Fine Chemicals CS-O-36831 120068-56-6 Enquire
5-Amino-1H-pyrazole-4-carbonitrile Fine Chemicals CS-ZE-10731 1204396-41-7 Enquire
5-Bromo-1H-pyrazolo[3,4-c]pyridine Fine Chemicals CS-M-55720 929617-35-6 Enquire
5-Bromo-1-methyl-1H-pyrazole-4-carbonitrile Fine Chemicals CS-ZH-01800 1269293-80-2 Enquire
5-Chloro-3-nitropyrazolo[1,5-a]pyrimidine Fine Chemicals CS-MM-23380 1363380-51-1 Enquire
5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one Fine Chemicals CS-MM-00131 19735-89-8 Enquire
5-Nitro-1H-pyrazole-3-carboxylic acid Fine Chemicals CS-M-16895 198348-89-9 Enquire
ethyl 1h-pyrazolo[3,4-d]pyrimidine-4-carboxylate Fine Chemicals CS-O-36719 2306272-96-6 Enquire
ethyl 5-amino-3-(ethylthio)-1H-pyrazole-4-carboxylate Fine Chemicals CS-O-37714 1037765-43-7 Enquire
Methyl 5-(4-methoxyphenyl)-4-[(E)-phenyldiazenyl]-1H-pyrazol... Fine Chemicals CS-ZH-09882 134454-31-2 Enquire
methyl 6-hydroxy-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carbo... Fine Chemicals CS-O-36091 2177263-15-7 Enquire
tert-Butyl 4-amino-1H-pyrazole-1-carboxylate Fine Chemicals CS-MM-52857 1018446-95-1 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-7-(1-acryloylpiperidin-4-yl)-4-nitroso-2-(4-phenoxypheny... Nitrosamine CS-O-56384 ---- Enquire
2-(3-(4-(7-nitroso-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyraz... Nitrosamine CS-O-55068 ---- Enquire
4-bromo-1-nitroso-1H-pyrazole Nitrosamine CS-O-46671 Not Available Discontinued
4-nitro-1-nitroso-3-propyl-1H-pyrazole-5-carboxamide Nitrosamine CS-O-42917 Not Available Enquire
4-nitroso-2-(4-phenoxyphenyl)-7-(piperidin-4-yl)-4,5,6,7-tet... Nitrosamine CS-O-54989 ---- Enquire
7-(1-nitrosopiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetr... Nitrosamine CS-O-54990 ---- Enquire
N-Nitroso Darolutamide Pyrazol benzonitrile Impurity Nitrosamine CS-EO-01972 ---- Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-methyl-1H-pyrazole-4-carbaldehyde-5-d Stable Isotope Reagent CS-O-48088 2913278-35-8 Enquire
1-methyl-1H-Pyrazole-5-d Stable Isotope Reagent CS-O-48085 50837-66-6 Enquire
1-methyl-d3-1H-pyrazole-3-carbaldehyde Stable Isotope Reagent CS-O-48090 2402829-79-0 Enquire
1-methyl-d3-1H-pyrazole-4-amine dihydrochloride Stable Isotope Reagent CS-O-48092 2567498-20-6 Enquire
1-methyl-d3-1H-pyrazole-4-carbaldehyde Stable Isotope Reagent CS-O-48089 2913418-12-7 Enquire
1-methyl-d3-1H-pyrazole-4-carboxylic acid Stable Isotope Reagent CS-O-48091 2919955-56-7 Enquire
4-(bromomethyl-d2)-1-methyl-1H-pyrazole hydrobromide Stable Isotope Reagent CS-O-47548 528878-44-6 (Unlabelled) Enquire
4-bromo-1-methyl-1H-Pyrazole-5-d Stable Isotope Reagent CS-O-48087 2932439-03-5 Enquire
4-Methyl-1H-pyrazole-3,5-d2 Stable Isotope Reagent CS-C-02129 Not Available Enquire


Heterocyclic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
hydrazinopyrazole Heterocyclic CS-ED-42020 54962-77-5 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,1′-(4-Phenyl-2,6-pyridinediyl)bis[1H-pyrazole-3-methanol] Building Blocks CS-O-48600 337917-96-1 Enquire
1-[2-[5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4... Building Blocks CS-O-46528 1003319-95-6 Enquire
1-cyclopropyl-1H-pyrazol-5-amine Building Blocks CS-O-44498 1501777-90-7 Enquire
1H-Pyrazole-3-boronic acid Building Blocks CS-M-11330 376584-63-3 Enquire
2-((3-(3,4-dimethoxyphenethyl)-4-oxo-3,4-dihydropyrido[2,3-d... Building Blocks CS-ED-41678 1086689-36-2 Enquire
2-(3,4-dimethylphenyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one Building Blocks CS-O-46667 18048-64-1 Enquire
3-Aminopyrazolo[1,5-a]pyrimidin-5-ol Building Blocks CS-O-59748 201599-20-4 Enquire
5-phenyl-4,5-dihydro-1H-pyrazole Building Blocks CS-O-48549 936-47-0 Enquire
6-(1-Cyclopropyl-1H-pyrazol-3-yl)imidazo[2,1-b]thiazole Building Blocks CS-O-47587 2411739-48-3 Enquire
Pyridine, 2,6-bis[3-(bromomethyl)-1H-pyrazol-1-yl]-4-phenyl Building Blocks CS-O-48601 337917-97-2 Enquire
1-(Difluoromethyl)-1H-pyrazol-4-amine Hydrochloride Building Blocks CS-TB-22063 1221726-31-3 Enquire
1H-PYRAZOLE-4-BORONIC ACID Building Blocks CS-DL-00264 763120-58-7 Enquire
4-(1H-pyrazol-3-yl)benzonitrile Building Blocks CS-TA-55992 474706-35-9 Enquire
4-(1H-pyrazol-4-yl)aniline Building Blocks CS-T-94180 114474-28-1 Enquire
4-Bromo-3-chloro-1H-pyrazole Building Blocks CS-ED-01288 27258-18-0 Enquire
4-Bromo-5-methoxy-1H-pyrazole Building Blocks CS-TA-36231 1147011-26-4 Enquire
4-methoxy-1H-pyrazol-5-amine Building Blocks CS-O-40986 151521-87-8 Enquire
4-Pyrazoleboronic Acid Pinacol Ester Building Blocks CS-T-40988 269410-08-4 Enquire
5-benzyl-1-methyl-1H-pyrazole-3-carboxylic acid Building Blocks CS-O-36556 2089059-09-4 Enquire
6-chloropyrazolo[1,5-a]pyridine Building Blocks CS-O-38851 894095-29-5 Enquire
aminopyrazolone Building Blocks CS-O-36739 Not Available Enquire


Dyes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,6-bis((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy... Dyes CS-O-46526 2734926-04-4 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Methyl-4-nitro-3-propylpyrazole-5-carboxamide Therapeutic CS-T-34289 139756-01-7 In Stock