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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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

2-(2-Aminophenyl)sulfanylbenzonitrile chemical structure

2-(2-Aminophenyl)sulfanylbenzonitrile

CAS: 140425-65-6
Formula: C₁₃H₁₀N₂S
MW: 226.3 g/mol

VQ-032320

Reference Standard

2-(2-Aminopropoxy)-3-methylbenzaldehyde

2-(2-Aminopropoxy)-3-methylbenzaldehyde

CAS: 1115028-69-7
Formula: C₁₁H₁₅NO₂
MW: 193.24 g/mol

VQ-049102

Reference Standard

2-(2-Benzoylphenyl)acetic acid chemical structure

2-(2-Benzoylphenyl)acetic acid

CAS: 23107-96-2
Formula: C₁₅H₁₂O₃
MW: 240.25 g/mol

VQ-032900

Reference Standard

2-(2-Bromo-acetylamino)-5-chloro-benzophenone chemical structure

2-(2-Bromo-acetylamino)-5-chloro-benzophenone

CAS: 32580-26-0
Formula: C₁₅H₁₁BrClNO₂
MW: 352.61 g/mol

VQ-043778

Reference Standard

2-(2-Butyl-4-hydroxy-6-methylpyrimidin-5-yl)-N,N-dimethylacetamide chemical structure

2-(2-Butyl-4-hydroxy-6-methylpyrimidin-5-yl)-N,N-dimethylacetamide

CAS: 1315478-13-7
Formula: C₁₃H₂₁N₃O₂
MW: 251.32 g/mol

VQ-025780

Reference Standard

2-(2-Butyl-4-methyl-6-oxo-1-((2'-(1-trityl-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-1,6-dihydropyrimidin-5-yl)-N,N-dimethylethanethioamide chemical structure

2-(2-Butyl-4-methyl-6-oxo-1-((2'-(1-trityl-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-1,6-dihydropyrimidin-5-yl)-N,N-dimethylethanethioamide

CAS: 1361024-52-3
Formula: C₄₆H₄₅N₇OS
MW: 744 g/mol

VQ-027128

Reference Standard

2-(2-Chloro ethoxy) Ethyl acetate chemical structure

2-(2-Chloro ethoxy) Ethyl acetate

CAS: 14258-40-3
Formula: C₆H₁₁ClO₃
MW: 166.6 g/mol

VQ-032792

Reference Standard

2-(2-Chloro-5-nitrophenyl)pyridine chemical structure

2-(2-Chloro-5-nitrophenyl)pyridine

CAS: 879088-40-1
Formula: C₁₁H₇ClN₂O₂
MW: 234.64 g/mol

VQ-028721

Reference Standard

2-(2-Chloro-benzoyl)-malonic acid diethyl ester chemical structure

2-(2-Chloro-benzoyl)-malonic acid diethyl ester

CAS: 3516-73-2
Formula: C₁₄H₁₅ClO₅
MW: 298.72 g/mol

VQ-032896

Reference Standard

2-(2-Chlorobenzamido)acetic acid chemical structure

2-(2-Chlorobenzamido)acetic acid

CAS: 16555-60-5
Formula: C₉H₈ClNO₃
MW: 213.62 g/mol

VQ-031066

Reference Standard

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

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

CAS: 811450-82-5
Formula: C₁₀H₁₁ClN₂O₄
MW: 258.66 g/mol

VQ-041964

Reference Standard

2-(2-Chloroethyl)-5-ethylpyridine chemical structure

2-(2-Chloroethyl)-5-ethylpyridine

CAS: 69603-36-7
Formula: C₉H₁₂ClN
MW: 169.65 g/mol

VQ-041495

Reference Standard

2-(2-Chlorophenyl)-2-((2-(thiophen-2-yl)ethyl)amino)acetic acid hydrochloride

2-(2-Chlorophenyl)-2-((2-(thiophen-2-yl)ethyl)amino)acetic acid hydrochloride

CAS: 1015247-86-5
Formula: C₁₄H₁₅Cl₂NO₂S
MW: 332.24 g/mol

VQ-029892

Reference Standard

2-(2-Chlorophenyl)pyridine chemical structure

2-(2-Chlorophenyl)pyridine

CAS: 4381-32-2
Formula: C₁₁H₈ClN
MW: 189.64 g/mol

VQ-044686

Reference Standard

2-(2-Cyanophenyl)benzonitrile chemical structure

2-(2-Cyanophenyl)benzonitrile

CAS: 4341-02-0
Formula: C₁₄H₈N₂
MW: 204.23 g/mol

VQ-032402

Reference Standard

2-(2-Diethylaminoethoxy)ethanol chemical structure

2-(2-Diethylaminoethoxy)ethanol

CAS: 140-82-9
Formula: C₈H₁₉NO₂
MW: 161.24 g/mol

VQ-021031

Reference Standard

2-(2-Ethoxyphenoxy)ethyl Methanesulfonate chemical structure

2-(2-Ethoxyphenoxy)ethyl Methanesulfonate

CAS: 169506-15-4
Formula: C₁₁H₁₆O₅S
MW: 260.31 g/mol

VQ-032723

Reference Standard

2-(2-Ethoxyphenoxymethyl)oxirane chemical structure

2-(2-Ethoxyphenoxymethyl)oxirane

CAS: 5296-35-5
Formula: C₁₁H₁₄O₃
MW: 194.23 g/mol

VQ-042906

Reference Standard

2-(2-Ethoxyphenyl)-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one chemical structure

2-(2-Ethoxyphenyl)-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one

CAS: 224789-21-3
Formula: C₁₇H₂₀N₄O₂
MW: 312.37 g/mol

VQ-023984

Reference Standard

2-(2-Fluoro-[1,1'-biphenyl]-4-yl)-2-methylmalonic Acid chemical structure

2-(2-Fluoro-[1,1'-biphenyl]-4-yl)-2-methylmalonic Acid

CAS: 42771-82-4
Formula: C₁₆H₁₃FO₄
MW: 288.27 g/mol

VQ-037372

Reference Standard

2-(2-Fluorophenyl)-5-(5-iodo-2-methylbenzyl)thiophene chemical structure

2-(2-Fluorophenyl)-5-(5-iodo-2-methylbenzyl)thiophene

CAS: 2436275-33-9
Formula: C₁₈H₁₄FIS
MW: 408.3 g/mol

VQ-044149

Reference Standard

2-(2-Fluorophenyl)thiophene chemical structure

2-(2-Fluorophenyl)thiophene

CAS: 209592-45-0
Formula: C₁₀H₇FS
MW: 178.23 g/mol

VQ-029596

Reference Standard

2-(2-Formylphenoxy)hexanoic acid chemical structure

2-(2-Formylphenoxy)hexanoic acid

CAS: 138320-27-1
Formula: C₁₃H₁₆O₄
MW: 236.26 g/mol

VQ-029112

Reference Standard

2-(2-Iminothiazolidin-3-yl)-1-phenylethanol hydrochloride chemical structure

2-(2-Iminothiazolidin-3-yl)-1-phenylethanol hydrochloride

CAS: 17899-33-1
Formula: C₁₁H₁₅ClN₂OS
MW: 258.77 g/mol

VQ-048849

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