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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

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COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

N-(2,6-Dimethylphenyl)-2-(4-(2-(2-hydroxy-3-(2-methoxyphenoxy)propoxy)-3-(2-methoxyphenoxy)propyl)piperazin-1-yl)acetamide chemical structure

N-(2,6-Dimethylphenyl)-2-(4-(2-(2-hydroxy-3-(2-methoxyphenoxy)propoxy)-3-(2-methoxyphenoxy)propyl)piperazin-1-yl)acetamide

CAS: 1983943-76-5
Formula: C₃₄H₄₅N₃O₇
MW: 607.7 g/mol

VQ-033461

Reference Standard

N-(2,6-Dimethylphenyl)-4-Methyl-5-oxo-3-propyl-1-(o-tolyl)Imidazolidine-2-Carboxamide chemical structure

N-(2,6-Dimethylphenyl)-4-Methyl-5-oxo-3-propyl-1-(o-tolyl)Imidazolidine-2-Carboxamide

CAS: 2509057-86-5
Formula: C₂₃H₂₉N₃O₂
MW: 379.5 g/mol

VQ-041664

Reference Standard

N-(2,6-Dimethylphenyl)-N-nitrosoformamide chemical structure

N-(2,6-Dimethylphenyl)-N-nitrosoformamide

CAS: 92917-44-7
Formula: C₉H₁₀N₂O₂
MW: 178.19 g/mol

VQ-032805

Reference Standard

N-(3-((3-Fluoro-4-morpholinophenyl)amino)-2-hydroxypropyl)acetamide chemical structure

N-(3-((3-Fluoro-4-morpholinophenyl)amino)-2-hydroxypropyl)acetamide

CAS: 1666111-36-9
Formula: C₁₅H₂₂FN₃O₃
MW: 311.35 g/mol

VQ-038074

Reference Standard

N-(3-(2-(2-Chloropyrimidin-4-yl)acetyl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide chemical structure

N-(3-(2-(2-Chloropyrimidin-4-yl)acetyl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide

CAS: 1195768-20-7
Formula: C₁₈H₁₁ClF₃N₃O₃S
MW: 441.8 g/mol

VQ-025147

Reference Standard

N-(3-(2-(Tert-Butyl)-5-(2-chloropyrimidin-4-yl)thiazol-4-yl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide chemical structure

N-(3-(2-(Tert-Butyl)-5-(2-chloropyrimidin-4-yl)thiazol-4-yl)-2-fluorophenyl)-2,6-difluorobenzenesulfonamide

CAS: 1195768-23-0
Formula: C₂₃H₁₈ClF₃N₄O₂S₂
MW: 539 g/mol

VQ-025148

Reference Standard

N-(3-(2-Formamido-5-methoxyphenyl)-3-oxopropyl)acetamide chemical structure

N-(3-(2-Formamido-5-methoxyphenyl)-3-oxopropyl)acetamide

CAS: 52450-38-1
Formula: C₁₃H₁₆N₂O₄
MW: 264.28 g/mol

VQ-031767

Reference Standard

N-(3-(3-(Piperidin-1-ylmethyl)phenoxy)propyl)formamide

N-(3-(3-(Piperidin-1-ylmethyl)phenoxy)propyl)formamide

CAS: 78274-00-7
Formula: C₁₆H₂₄N₂O₂
MW: 276.37 g/mol

VQ-042024

Reference Standard

N-(3-(3-Cyanopyrazolo[1,5-a]pyrimidin-5-yl)phenyl)-N-ethylacetamide chemical structure

N-(3-(3-Cyanopyrazolo[1,5-a]pyrimidin-5-yl)phenyl)-N-ethylacetamide

CAS: 478081-98-0
Formula: C₁₇H₁₅N₅O
MW: 305.33 g/mol

VQ-034724

Reference Standard

N-(3-(3-Cyclopropyl-5-((2-fluoro-4-iodophenyl)imino)-8-hydroperoxy-6,8-dimethyl-2,4,7-trioxo-3,4,5,6,7,8-hexahydropyrido[4,3-d]pyrimidin-1(2H)-yl)phenyl)acetamide chemical structure

N-(3-(3-Cyclopropyl-5-((2-fluoro-4-iodophenyl)imino)-8-hydroperoxy-6,8-dimethyl-2,4,7-trioxo-3,4,5,6,7,8-hexahydropyrido[4,3-d]pyrimidin-1(2H)-yl)phenyl)acetamide

CAS: 1383430-04-3
Formula: C₂₆H₂₃FIN₅O₆
MW: 647.4 g/mol

VQ-034382

Reference Standard

N-(3-(3-Cyclopropyl-5-((2-fluoro-4-iodophenyl)imino)-8-hydroxy-6,8-dimethyl-2,4,7-trioxo-3,4,5,6,7,8-hexahydropyrido[4,3-d]pyrimidin-1(2H)-yl)phenyl)acetamide chemical structure

N-(3-(3-Cyclopropyl-5-((2-fluoro-4-iodophenyl)imino)-8-hydroxy-6,8-dimethyl-2,4,7-trioxo-3,4,5,6,7,8-hexahydropyrido[4,3-d]pyrimidin-1(2H)-yl)phenyl)acetamide

CAS: 1383430-03-2
Formula: C₂₆H₂₃FIN₅O₅
MW: 631.4 g/mol

VQ-034381

Reference Standard

N-(3-(6-Amino-5-(2-(methyl(nitroso)amino)ethoxy)pyrimidin-4-yl)-5-fluoro-2-methylphenyl)-4-cyclopropyl-2-fluorobenzamide chemical structure

N-(3-(6-Amino-5-(2-(methyl(nitroso)amino)ethoxy)pyrimidin-4-yl)-5-fluoro-2-methylphenyl)-4-cyclopropyl-2-fluorobenzamide

CAS: 3103121-14-5
Formula: C₂₄H₂₄F₂N₆O₃
MW: 482.5 g/mol

VQ-041866

Reference Standard

N-(3-Acetylphenyl)acetamide chemical structure

N-(3-Acetylphenyl)acetamide

CAS: 7463-31-2
Formula: C₁₀H₁₁NO₂
MW: 177.2 g/mol

VQ-039620

Reference Standard

N-(3-Amino-3-oxoprop-1-en-2-yl)benzamide chemical structure

N-(3-Amino-3-oxoprop-1-en-2-yl)benzamide

CAS: 478932-11-5
Formula: C₁₀H₁₀N₂O₂
MW: 190.2 g/mol

VQ-031061

Reference Standard

N-(3-Amino-5,7-dimethyl adamantan-1-yl) Acetamide chemical structure

N-(3-Amino-5,7-dimethyl adamantan-1-yl) Acetamide

CAS: 2512210-35-2
Formula: C₁₄H₂₄N₂O
MW: 236.35 g/mol

VQ-043979

Reference Standard

N-(3-Aminophenyl)-N-methyl-2-(4-methylpiperazin-1-yl)acetamide chemical structure

N-(3-Aminophenyl)-N-methyl-2-(4-methylpiperazin-1-yl)acetamide

CAS: 652140-28-8
Formula: C₁₄H₂₂N₄O
MW: 262.35 g/mol

VQ-049255

Reference Standard

N-(3-Bromo-4-oxocyclohexyl)acetamide chemical structure

N-(3-Bromo-4-oxocyclohexyl)acetamide

CAS: 687639-03-8
Formula: C₈H₁₂BrNO₂
MW: 234.09 g/mol

VQ-029177

Reference Standard

N-(3-Bromopropyl)-N-butylbutan-1-amine chemical structure

N-(3-Bromopropyl)-N-butylbutan-1-amine

CAS: 113385-32-3
Formula: C₁₁H₂₄BrN
MW: 250.22 g/mol

VQ-036833

Reference Standard

N-(3-Chloro-2-fluorophenyl)-7-methoxy-6-(3-morpholinopropoxy)quinazolin-4-amine chemical structure

N-(3-Chloro-2-fluorophenyl)-7-methoxy-6-(3-morpholinopropoxy)quinazolin-4-amine

CAS: 909863-33-8
Formula: C₂₂H₂₄ClFN₄O₃
MW: 446.9 g/mol

VQ-037493

Reference Standard

N-(3-Chloro-2-hydroxypropyl)-phthalimide chemical structure

N-(3-Chloro-2-hydroxypropyl)-phthalimide

CAS: 19667-37-9
Formula: C₁₁H₁₀ClNO₃
MW: 239.65 g/mol

VQ-033598

Reference Standard

N-(3-Chloro-2-methylphenyl)-2-hydroxynicotinamide chemical structure

N-(3-Chloro-2-methylphenyl)-2-hydroxynicotinamide

CAS: 72646-00-5
Formula: C₁₃H₁₁ClN₂O₂
MW: 262.69 g/mol

VQ-023016

Reference Standard

N-(3-Chloro-4-((3-fluorobenzyl)oxy)phenyl)-6-(5-((((5-(4-((3-chloro-4-((3-fluorobenzyl)oxy)phenyl)amino)quinazolin-6-yl)furan-2-yl)methyl)(2-(methylsulfonyl)ethyl)amino)methyl)furan-2-yl)quinazolin-4-amine chemical structure

N-(3-Chloro-4-((3-fluorobenzyl)oxy)phenyl)-6-(5-((((5-(4-((3-chloro-4-((3-fluorobenzyl)oxy)phenyl)amino)quinazolin-6-yl)furan-2-yl)methyl)(2-(methylsulfonyl)ethyl)amino)methyl)furan-2-yl)quinazolin-4-amine

CAS: 2172855-57-9
Formula: C₅₅H₄₃Cl₂F₂N₇O₆S
MW: 1038.9 g/mol

VQ-031447

Reference Standard

N-(3-Chloro-4-fluorophenyl)-7-methoxy-6-nitroquinazolin-4-amine chemical structure

N-(3-Chloro-4-fluorophenyl)-7-methoxy-6-nitroquinazolin-4-amine

CAS: 179552-74-0
Formula: C₁₅H₁₀ClFN₄O₃
MW: 348.71 g/mol

VQ-028799

Reference Standard

N-(3-Chlorophenyl)-1,2-ethylenediamine chemical structure

N-(3-Chlorophenyl)-1,2-ethylenediamine

CAS: 14088-83-6
Formula: C₈H₁₁ClN₂
MW: 170.64 g/mol

VQ-050103

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