Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
27,990products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,098Pharmacopeial Impurities (EP / USP / BP) 4,399Nitrosamine Impurities 631Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504Metabolites & Degradation Products 3,922API Reference Standards 3,436
4-((4-Carbamoylpiperidin-1-yl)methyl)benzoic acid
- CAS
- 938143-02-3
- Formula
- C14H18N2O3
- MW
- 262.3 g/mol
VQ-023626
4-((4-Fluoro-2-methyl-1H-indol-5-yl)oxy)-6-methoxyquinolin-7-ol
- CAS
- 1210828-44-6
- Formula
- C19H15FN2O3
- MW
- 338.3 g/mol
VQ-024304
4-((4,5-Bis(hydroxymethyl)-2-methylpyridin-3-yl)oxy)-4-oxobutanoic Acid
- CAS
- 96181-47-4
- Formula
- C12H15NO6
- MW
- 269.25 g/mol
VQ-033391
4-((5-Hydroxy-4-(hydroxymethyl)-6-methylpyridin-3-yl)methoxy)-4-oxobutanoic acid
- CAS
- 412940-03-5
- Formula
- C12H15NO6
- MW
- 269.25 g/mol
VQ-033390
4-((5,6-Dimethoxy-2,3-dihydro-1H-inden-2-yl)methyl)piperidine
- CAS
- 844694-83-3
- Formula
- C17H25NO2
- MW
- 275.4 g/mol
VQ-048073
4-((5,6-Diphenylpyrazin-2-yl)(isopropyl)amino)butan-1-ol
- CAS
- 475086-75-0
- Formula
- C23H27N3O
- MW
- 361.5 g/mol
VQ-021341
4-((5,6-Diphenylpyrazin-2-yl)(isopropyl)amino)butyl formate
- CAS
- 2273000-76-1
- Formula
- C24H27N3O2
- MW
- 389.5 g/mol
VQ-042130
4-((6-Amino-5-chloro-2-((4-cyanophenyl)amino)pyrimidin-4-yl)oxy)-3,5-Dimethylbenzonitrile
- CAS
- 269055-19-8
- Formula
- C20H15ClN6O
- MW
- 390.8 g/mol
VQ-025682
4-((6,7-Diethoxy-3,4-dihydroisoquinolin-1(2H)-ylidene)methyl)-2-ethoxyphenol
- CAS
- 80396-10-7
- Formula
- C22H27NO4
- MW
- 369.45 g/mol
VQ-048108
![4-((6BR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3',4':4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl)-1-(4-((6bR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3',4':4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl)phenyl)butan-1-one chemical structure](/media/structures/LYTKNFUECCMLNS-YRCZKMHPSA-N.svg)
![4-((6BR,10aS)-3-Methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3',4':4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl)-1-phenylbutan-1-one chemical structure](/media/structures/KIOLUKGHLOUGFU-SFTDATJTSA-N.svg)
4-((6BR,10aS)-3-Methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3',4':4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl)-1-phenylbutan-1-one
- CAS
- 1576239-82-1
- Formula
- C24H29N3O
- MW
- 375.5 g/mol
VQ-044730
![4-((7-Chloro-2-methoxybenzo[b][1,5]naphthyridin-10-yl)amino)phenol chemical structure](/media/structures/OHLFWLUPLZLCGD-UHFFFAOYSA-N.svg)
4-((7-Chloro-2-methoxybenzo[b][1,5]naphthyridin-10-yl)amino)phenol
- CAS
- 81935-60-6
- Formula
- C19H14ClN3O2
- MW
- 351.8 g/mol
VQ-044926
4-((Hydroxymethyl)(methyl)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
- CAS
- 62902-13-0
- Formula
- C13H17N3O2
- MW
- 247.3 g/mol
VQ-043810
![4-((S)-4-Acryloyl-2-methylpiperazin-1-yl)-6-fluoro-7-(2-fluoro-6-hydroxyphenyl)-1-(2-isopropyl-4-methylpyridin-3-yl)pyrido[2,3-d]pyrimidin-2(1H)-one chemical structure](/media/structures/NXQKSXLFSAEQCZ-SFHVURJKSA-N.svg)
4-((S)-4-Acryloyl-2-methylpiperazin-1-yl)-6-fluoro-7-(2-fluoro-6-hydroxyphenyl)-1-(2-isopropyl-4-methylpyridin-3-yl)pyrido[2,3-d]pyrimidin-2(1H)-one
- CAS
- 2252403-56-6
- Formula
- C30H30F2N6O3
- MW
- 560.6 g/mol
VQ-023792
4-((tert-Butoxycarbonyl)amino)piperidine-4-carboxylic acid
- CAS
- 252720-31-3
- Formula
- C11H20N2O4
- MW
- 244.29 g/mol
VQ-024754
![4-([1,1'-Biphenyl]-4-yl(hydroxy)(phenyl)methyl)-1-(2-(benzyloxy)ethyl)quinuclidin-1-ium Bromide chemical structure](/media/structures/VIDGSWLCLOKMJO-UHFFFAOYSA-M.svg)
4-([1,1'-Biphenyl]-4-yl(hydroxy)(phenyl)methyl)-1-(2-(benzyloxy)ethyl)quinuclidin-1-ium Bromide
- CAS
- 2253743-40-5
- Formula
- C35H38BrNO2
- MW
- 584.6 g/mol
VQ-028578
![4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline chemical structure](/media/structures/DFMSLMUVJUMZPA-UHFFFAOYSA-N.svg)
4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline
- CAS
- 937263-71-3
- Formula
- C13H12N4O
- MW
- 240.26 g/mol
VQ-034470
4-(1-(2,3-Dimethylphenyl)vinyl)-1-trityl-1H-imidazole
- CAS
- 1375519-40-6
- Formula
- C32H28N2
- MW
- 440.6 g/mol
VQ-049026
4-(1-(2,4-Diaminopteridin-6-yl)pent-4-yn-2-yl)benzoic Acid
- CAS
- 146464-93-9
- Formula
- C18H16N6O2
- MW
- 348.4 g/mol
VQ-027563
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