Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
28,554products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,252Pharmacopeial Impurities (EP / USP / BP) 4,401Nitrosamine Impurities 650Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612Metabolites & Degradation Products 4,146API Reference Standards 3,493
4-(2-Oxo-1,2,3,4-tetrahydroquinolin-6-yl)oxy Cilostazol
- CAS
- 1796891-27-4
- Formula
- C29H34N6O4
- MW
- 530.6 g/mol
VQ-036304
4-(2,2-Dimethyl-4H-benzo(d)(1,3)dioxin-6-yl)-2-(hydroxymethyl)phenol
- CAS
- 1160003-78-0
- Formula
- C17H18O4
- MW
- 286.3 g/mol
VQ-052228
4-(2,3-Dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic Acid
- CAS
- 138279-32-0
- Formula
- C15H13Cl2NO4
- MW
- 342.2 g/mol
VQ-021189
4-(2,3-Dichlorophenyl)-2,6-dimethyl-3-pyridinecarboxylic acid methyl ester
- CAS
- 105383-68-4
- Formula
- C15H13Cl2NO2
- MW
- 310.2 g/mol
VQ-022214
4-(2,3-Dichlorophenyl)-5-(methoxycarbonyl)-2,6-dimethylnicotinic acid
- CAS
- 91854-02-3
- Formula
- C16H13Cl2NO4
- MW
- 354.2 g/mol
VQ-025010
4-(2,3-Dichlorophenyl)-N,N-dimethylpiperazine-1-carboxamide
- CAS
- 2327471-74-7
- Formula
- C13H17Cl2N3O
- MW
- 302.2 g/mol
VQ-022021
4-(2,4-Dichloro-5-methoxyphenylamino)-6,7-dimethoxyquinoline-3-carbonitrile
- CAS
- 380843-12-9
- Formula
- C19H15Cl2N3O3
- MW
- 404.2 g/mol
VQ-024626
4-(2,4-Dichlorophenyl)-3,4-dihydronaphthalen-1(2H)-one
- CAS
- 127293-50-9
- Formula
- C16H12Cl2O
- MW
- 291.2 g/mol
VQ-042146
4-(3-((3,4-Dimethoxyphenethyl)amino)butyl)phenol
- CAS
- 140165-60-2
- Formula
- C20H27NO3
- MW
- 329.4 g/mol
VQ-045163
4-(3-((4-Chloro-7-methoxyquinazolin-6-yl)oxy)propyl)morpholine
- CAS
- 199327-59-8
- Formula
- C16H20ClN3O3
- MW
- 337.8 g/mol
VQ-037492
4-(3-(1-(4-Cyano-3-(trifluoromethyl)phenyl)-3-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazolin-7-yl)-4,4-dimethyl-5-oxo-2-thioxoimidazolidin-1-yl)-2-(trifluoromethyl)benzonitrile
- CAS
- 2810090-73-2
- Formula
- C30H18F6N6O2S2
- MW
- 672.6 g/mol
VQ-021219
4-(3-(2,5-Dichloro-4,6-dimethylpyridin-3-yl)-1,2,4-oxadiazol-5-yl)-2-methoxy-6-nitrophenol
- CAS
- 1391712-50-7
- Formula
- C16H12Cl2N4O5
- MW
- 411.2 g/mol
VQ-023339
4-(3-(3,5-Dichlorophenyl)-4,4,4-trifluoro-3-hydroxybutanoyl)-2-methylbenzoic acid
- CAS
- 1095275-07-2
- Formula
- C18H13Cl2F3O4
- MW
- 421.2 g/mol
VQ-048435
4-(3-(3,5-Dichlorophenyl)-4,4,4-trifluorobut-2-enoyl)-2-methylbenzoic acid
- CAS
- 1095275-26-5
- Formula
- C18H11Cl2F3O3
- MW
- 403.2 g/mol
VQ-048436
4-(3-(4-(Cyclopropanecarbonyl)piperazine-1-carbonyl)-4-fluorobenzoyl)phthalazin-1(2H)-one
- CAS
- 1460272-52-9
- Formula
- C24H21FN4O4
- MW
- 448.4 g/mol
VQ-032232
4-(3-(4-(tert-Butyl)phenyl)-2-methylpropyl)-2,6-dimethylmorpholine
- CAS
- 67306-03-0
- Formula
- C20H33NO
- MW
- 303.5 g/mol
VQ-035710
4-(3-(4-Cyano-3-(trifluoromethyl)phenyl)-5,5-dimethyl-2,4-dioxoimidazolidin-1-yl)-2-fluorobenzamide
- CAS
- 1242137-17-2
- Formula
- C20H14F4N4O3
- MW
- 434.3 g/mol
VQ-022543
4-(3-(4-Cyano-3-(trifluoromethyl)phenyl)thioureido)-2-fluoro-N-methylbenzamide
- CAS
- 1798807-39-2
- Formula
- C17H12F4N4OS
- MW
- 396.4 g/mol
VQ-025549
4-(3-(Carboxymethyl)-3-hydroxy-2,5-dioxopyrrolidin-1-yl)-3-(4-chlorophenyl)butanoic Acid
- CAS
- 2414257-07-9
- Formula
- C16H16ClNO7
- MW
- 369.75 g/mol
VQ-029348
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