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

Ethoxyquin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(4-((5,6-Dimethoxyquinolin-8-yl)amino)pentyl)isoindoline-1... Stable Isotopes CS-T-98656 Not Available Enquire
4-Chloro-2-propyl-6-trifluoromethoxyquinoline-d8 Stable Isotopes CS-T-96386 168834-43-3 (Unlabelled) Enquire
8-Amino-6-methoxyquinoline-d5 Stable Isotopes CS-T-101907 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Ethoxyquine API CS-L-00077 91-53-2 In Stock
Ethoxyquin HCl API CS-AZ-00164 Not Available Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
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


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4-(4-amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-y... Impurity CS-O-42124 Not Available Enquire
{(1S,2S,4S,5R)-1-ethyl-2-((R)-hydroxy(6-methoxyquinolin-4-yl... Impurity CS-O-59042 ---- Enquire
4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-yl ac... Impurity CS-O-31371 788136-89-0 In Stock
4-hydroxy-7-methoxyquinoline-6-carboxamide Impurity CS-O-39929 2110414-05-4 In Stock
(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
1-(4-((3-chloro-4-fluorophenyl)amino)-7-methoxyquinazolin-6-... Impurity CS-O-37056 2190490-31-2 Enquire
2-(4-allylpiperazin-1-yl)-6,7-dimethoxyquinazolin-4(3H)-imin... Impurity CS-P-07136 Not Available Enquire
3-Bromo-8-methoxyquinoline Impurity CS-N-05177 103030-27-9 Enquire
4-((6,7-dimethoxyquinolin-4-yl)amino)phenol Impurity CS-O-40386 748707-58-6 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-Chloro-6-hydroxy-7-methoxyquinazoline Impurity CS-M-51712 574745-97-4 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Benzyl-6-bromo-2-methoxyquinoline Intermediate CS-O-32114 654655-69-3 In Stock
4-chloro-2-(4-chlorophenyl)-6,7,8-trimethoxyquinazoline Intermediate CS-O-55431 228118-54-5 Enquire
4-Chloro-6-methoxyquinolin-7-ol Intermediate CS-M-57904 205448-31-3 In Stock
4-Chloro-7-methoxyquinoline-6-carboxamide Intermediate CS-O-32422 417721-36-9 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


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-chloro-7-methoxyquinolin-6-ol Fine Chemicals CS-DV-02739 205448-74-4 In Stock
6,7-Dimethoxyquinazoline Fine Chemicals CS-O-54453 4101-33-1 Enquire
6-Methoxyquinolin-8-amine Fine Chemicals CS-M-42449 90-52-8 In Stock
2-methoxyquinolin-7-amine Fine Chemicals CS-ZB-18844 1354222-16-4 Enquire
7-Bromo-6-methoxyquinazolin-4(3H)-one Fine Chemicals CS-ED-01435 1698027-08-5 Enquire
8-Methoxyquinazolin-4-ol Fine Chemicals CS-MM-47100 16064-27-0 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Chloro-4-((6,7-dimethoxyquinolin-4-yl)oxy)aniline Building Blocks CS-O-59670 286371-44-6 Enquire
4-​Chloro-​7-​(3-​chloropropoxy)​-​3-​cyano-​6-​methoxyquino... Building Blocks CS-T-95861 214470-68-5 Enquire
7-Chloro-4- Methoxyquinoline Building Blocks CS-O-54003 26707-52-8 In Stock