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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

2,746in stock

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-Aminoethyl)morpholine-4-carboxamide Hydrochloride chemical structure

N-(2-Aminoethyl)morpholine-4-carboxamide Hydrochloride

CAS: 88017-03-2
Formula: C₇H₁₆ClN₃O₂
MW: 209.67 g/mol

VQ-037876

Reference Standard

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

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

CAS: 2117628-65-4
Formula: C₁₄H₂₂N₄O
MW: 262.35 g/mol

VQ-032170

Reference Standard

N-(2-Aminophenyl)-N,7-dimethyl-2-propyl-1H-benzo[d]imidazole-5-carboxamide chemical structure

N-(2-Aminophenyl)-N,7-dimethyl-2-propyl-1H-benzo[d]imidazole-5-carboxamide

CAS: 1860008-29-2
Formula: C₁₉H₂₂N₄O
MW: 322.4 g/mol

VQ-034100

Reference Standard

N-(2-Chloro-2-methylpropyl)-N-(3,3-diphenylpropyl)-N-methylamine chemical structure

N-(2-Chloro-2-methylpropyl)-N-(3,3-diphenylpropyl)-N-methylamine

CAS: 936491-32-6
Formula: C₂₀H₂₆ClN
MW: 315.9 g/mol

VQ-037951

Reference Standard

N-(2-Chloro-4-methylpyridin-3-yl)-2-(cyclopropylamino)nicotinamide chemical structure

N-(2-Chloro-4-methylpyridin-3-yl)-2-(cyclopropylamino)nicotinamide

CAS: 133627-47-1
Formula: C₁₅H₁₅ClN₄O
MW: 302.76 g/mol

VQ-032109

Reference Standard

N-(2-Chloro-4-nitrophenyl)-2-hydroxybenzamide chemical structure

N-(2-Chloro-4-nitrophenyl)-2-hydroxybenzamide

CAS: 32853-24-0
Formula: C₁₃H₉ClN₂O₄
MW: 292.67 g/mol

VQ-026888

Reference Standard

N-(2-Chloro-5-methoxyphenyl)-2-cyanoacetamide chemical structure

N-(2-Chloro-5-methoxyphenyl)-2-cyanoacetamide

CAS: 1307530-78-4
Formula: C₁₀H₉ClN₂O₂
MW: 224.64 g/mol

VQ-036012

Reference Standard

N-(2-Chloro-6-methylphenyl)-2-((2-methyl-6-(2-(piperazin-1-yl)ethoxy)pyrimidin-4-yl)amino)thiazole-5-carboxamide chemical structure

N-(2-Chloro-6-methylphenyl)-2-((2-methyl-6-(2-(piperazin-1-yl)ethoxy)pyrimidin-4-yl)amino)thiazole-5-carboxamide

CAS: 2468737-83-7
Formula: C₂₂H₂₆ClN₇O₂S
MW: 488 g/mol

VQ-044122

Reference Standard

N-(2-Chloro-6-methylphenyl)-2-((2-methyl-6-(piperazin-1-yl)pyrimidin-4-yl)amino)thiazole-5-carboxamide hydrochloride chemical structure

N-(2-Chloro-6-methylphenyl)-2-((2-methyl-6-(piperazin-1-yl)pyrimidin-4-yl)amino)thiazole-5-carboxamide hydrochloride

CAS: 1852573-26-2
Formula: C₂₀H₂₃Cl₂N₇OS
MW: 480.4 g/mol

VQ-030082

Reference Standard

N-(2-Chloroethyl)-N-ethylnitrous amide chemical structure

N-(2-Chloroethyl)-N-ethylnitrous amide

CAS: 89166-19-8
Formula: C₄H₉ClN₂O
MW: 136.58 g/mol

VQ-032901

Reference Standard

N-(2-Chloroethyl)-N-Methylnitrous Amide chemical structure

N-(2-Chloroethyl)-N-Methylnitrous Amide

CAS: 16339-16-5
Formula: C₃H₇ClN₂O
MW: 122.55 g/mol

In stock

Reference Standard

N-(2-Chloroethyl)-piperidine hydrochloride chemical structure

N-(2-Chloroethyl)-piperidine hydrochloride

CAS: 2008-75-5
Formula: C₇H₁₅Cl₂N
MW: 184.1 g/mol

VQ-032744

Reference Standard

N-(2-Cyano-3-hydroxy-2-propenyl)formamide monosodium salt chemical structure

N-(2-Cyano-3-hydroxy-2-propenyl)formamide monosodium salt

CAS: 106030-08-4
Formula: C₅H₅N₂NaO₂
MW: 148.1 g/mol

VQ-042490

Reference Standard

N-(2-Cyano-4-iodophenyl)-N,N-dimethylformamidine

N-(2-Cyano-4-iodophenyl)-N,N-dimethylformamidine

CAS: 903597-10-4
Formula: C₁₀H₁₀IN₃
MW: 299.11 g/mol

VQ-039188

Reference Standard

N-(2-Cyanoethyl)-4-nitrobenzamide chemical structure

N-(2-Cyanoethyl)-4-nitrobenzamide

CAS: 1141-61-3
Formula: C₁₀H₉N₃O₃
MW: 219.2 g/mol

VQ-027280

Reference Standard

N-(2-Ethoxy-4-nitrophenyl)acetamide chemical structure

N-(2-Ethoxy-4-nitrophenyl)acetamide

CAS: 116496-76-5
Formula: C₁₀H₁₂N₂O₄
MW: 224.21 g/mol

VQ-051348

Reference Standard

N-(2-Ethylpent-4-en-1-ylidene)-N-isobutyl-2-methylpropan-1-aminium bromide chemical structure

N-(2-Ethylpent-4-en-1-ylidene)-N-isobutyl-2-methylpropan-1-aminium bromide

CAS: 1415817-34-3
Formula: C₁₅H₃₀BrN
MW: 304.31 g/mol

VQ-038428

Reference Standard

N-(2-Hydroxy-4-nitrophenyl)methanesulfonamide chemical structure

N-(2-Hydroxy-4-nitrophenyl)methanesulfonamide

CAS: 38880-53-4
Formula: C₇H₈N₂O₅S
MW: 232.22 g/mol

VQ-026913

Reference Standard

N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-hydroxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide chemical structure

N-(2-Hydroxy-5-(1-hydroxy-2-((1-(4-hydroxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide

CAS: 49861-92-9
Formula: C₁₈H₂₂N₂O₄
MW: 330.4 g/mol

VQ-035186

Reference Standard

N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide chemical structure

N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide

CAS: 110578-73-9
Formula: C₆H₉N₃O₃
MW: 171.15 g/mol

VQ-026671

Reference Standard

N-(2-Hydroxyethyl)-N-(2-(methyl(2-methyl-1-phenylpropan-2-yl)amino)-2-oxoethyl)glycine

N-(2-Hydroxyethyl)-N-(2-(methyl(2-methyl-1-phenylpropan-2-yl)amino)-2-oxoethyl)glycine

CAS: 152172-24-2
Formula: C₁₇H₂₆N₂O₄
MW: 322.4 g/mol

VQ-049043

Reference Standard

N-(2-Hydroxyethyl)-N-methylglycine chemical structure

N-(2-Hydroxyethyl)-N-methylglycine

CAS: 26294-19-9
Formula: C₅H₁₁NO₃
MW: 133.15 g/mol

VQ-049749

Reference Standard

N-(2-Hydroxyethyl)-N-Methylnitrous Amide chemical structure

N-(2-Hydroxyethyl)-N-Methylnitrous Amide

CAS: 26921-68-6
Formula: C₃H₈N₂O₂
MW: 104.11 g/mol

In stock

Reference Standard

N-(2-Hydroxyethyl)glycine (~90%) chemical structure

N-(2-Hydroxyethyl)glycine (~90%)

CAS: 5835-28-9
Formula: C₄H₉NO₃
MW: 119.12 g/mol

VQ-049750

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