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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

(S)-(2-Chlorophenyl)(4-((tetrahydrofuran-3-yl)oxy)phenyl)methanone chemical structure

(S)-(2-Chlorophenyl)(4-((tetrahydrofuran-3-yl)oxy)phenyl)methanone

CAS: 2452301-22-1
Formula: C₁₇H₁₅ClO₃
MW: 302.7 g/mol

VQ-028893

Reference Standard

(S)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-hydroxyphenyl)propanoate chemical structure

(S)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-hydroxyphenyl)propanoate

CAS: 144256-11-1
Formula: C₁₅H₂₀O₅
MW: 280.32 g/mol

VQ-031432

Reference Standard

(S)-(3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl methanesulfonate chemical structure

(S)-(3-(3-Fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl methanesulfonate

CAS: 2180621-71-8
Formula: C₁₅H₁₉FN₂O₆S
MW: 374.4 g/mol

VQ-038068

Reference Standard

(S)-(3-(5-Chlorothiophene-2-carboxamido)-2-hydroxypropyl)(4-(3-oxomorpholino)phenyl)carbamic acid chemical structure

(S)-(3-(5-Chlorothiophene-2-carboxamido)-2-hydroxypropyl)(4-(3-oxomorpholino)phenyl)carbamic acid

CAS: 2304798-51-2
Formula: C₁₉H₂₀ClN₃O₆S
MW: 453.9 g/mol

VQ-033613

Reference Standard

(S)-(3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methanamine chemical structure

(S)-(3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)methanamine

CAS: 869856-07-5
Formula: C₁₁H₁₅NO₂
MW: 193.24 g/mol

VQ-043200

Reference Standard

(S)-(4-(5-(3-Cyano-4-isopropoxyphenyl)-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1H-inden-1-yl)glycine chemical structure

(S)-(4-(5-(3-Cyano-4-isopropoxyphenyl)-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1H-inden-1-yl)glycine

CAS: 2990018-57-8
Formula: C₂₃H₂₂N₄O₄
MW: 418.4 g/mol

VQ-041287

Reference Standard

(S)-(4-Chlorophenyl)(phenyl)methanamine chemical structure

(S)-(4-Chlorophenyl)(phenyl)methanamine

CAS: 163837-32-9
Formula: C₁₃H₁₂ClN
MW: 217.69 g/mol

VQ-032812

Reference Standard

(S)-1-((2-Isopropylthiazol-4-yl)methyl)-1-methyl-3-(2-oxotetrahydrofuran-3-yl)urea chemical structure

(S)-1-((2-Isopropylthiazol-4-yl)methyl)-1-methyl-3-(2-oxotetrahydrofuran-3-yl)urea

CAS: 1004316-93-1
Formula: C₁₃H₁₉N₃O₃S
MW: 297.38 g/mol

VQ-029919

Reference Standard

(S)-1-((E)-2-(((1r,3R,5R,7S)-3-Hydroxyadamantan-1-yl)imino)acetyl)pyrrolidine-2-carbonitrile chemical structure

(S)-1-((E)-2-(((1r,3R,5R,7S)-3-Hydroxyadamantan-1-yl)imino)acetyl)pyrrolidine-2-carbonitrile

CAS: 1846606-31-2
Formula: C₁₇H₂₃N₃O₂
MW: 301.4 g/mol

VQ-034612

Reference Standard

(S)-1-((S)-6-Fluorochroman-2-yl)-2-(((R)-2-((S)-6-fluorochroman-2-yl)-2-hydroxyethyl)amino)ethanol chemical structure

(S)-1-((S)-6-Fluorochroman-2-yl)-2-(((R)-2-((S)-6-fluorochroman-2-yl)-2-hydroxyethyl)amino)ethanol

CAS: 119365-25-2
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

VQ-032073

Reference Standard

(S)-1-([1,1′-Biphenyl]-4-yl)-3-chloropropan-2-ol chemical structure

(S)-1-([1,1′-Biphenyl]-4-yl)-3-chloropropan-2-ol

CAS: 1573000-28-8
Formula: C₁₅H₁₅ClO
MW: 246.73 g/mol

VQ-023708

Reference Standard

(S)-1-(2-(((1R,3R,5R,7S)-3-Hydroxyadamantan-1-yl)imino)acetyl)pyrrolidine-2-carbonitrile chemical structure

(S)-1-(2-(((1R,3R,5R,7S)-3-Hydroxyadamantan-1-yl)imino)acetyl)pyrrolidine-2-carbonitrile

CAS: 2246354-69-6
Formula: C₁₇H₂₃N₃O₂
MW: 301.4 g/mol

VQ-034625

Reference Standard

(S)-1-(2-Aminoacetyl)-pyrrolidine-2-carbonitrile chemical structure

(S)-1-(2-Aminoacetyl)-pyrrolidine-2-carbonitrile

CAS: 914070-99-8
Formula: C₇H₁₁N₃O
MW: 153.18 g/mol

VQ-034613

Reference Standard

(S)-1-(2-Chlorophenyl)-2-(1H-tetrazol-1-yl)ethyl carbamate chemical structure

(S)-1-(2-Chlorophenyl)-2-(1H-tetrazol-1-yl)ethyl carbamate

CAS: 913089-09-5
Formula: C₁₀H₁₀ClN₅O₂
MW: 267.67 g/mol

VQ-036222

Reference Standard

(S)-1-(2-Chlorophenyl)-2-(2H-tetrazol-2-yl)ethan-1-ol chemical structure

(S)-1-(2-Chlorophenyl)-2-(2H-tetrazol-2-yl)ethan-1-ol

CAS: 2857969-41-4
Formula: C₉H₉ClN₄O
MW: 224.65 g/mol

VQ-036221

Reference Standard

(S)-1-(2-Hydroxyacetyl)pyrrolidine-2-carbonitrile chemical structure

(S)-1-(2-Hydroxyacetyl)pyrrolidine-2-carbonitrile

CAS: 1563006-28-9
Formula: C₇H₁₀N₂O₂
MW: 154.17 g/mol

VQ-034620

Reference Standard

(S)-1-(2-Hydroxyacetyl)pyrrolidine-2-carboxamide chemical structure

(S)-1-(2-Hydroxyacetyl)pyrrolidine-2-carboxamide

CAS: 96166-39-1
Formula: C₇H₁₂N₂O₃
MW: 172.18 g/mol

VQ-028702

Reference Standard

(S)-1-(3-Chlorophenyl)-2-Hydroxy-1-Propanone chemical structure

(S)-1-(3-Chlorophenyl)-2-Hydroxy-1-Propanone

CAS: 287477-53-6
Formula: C₉H₉ClO₂
MW: 184.62 g/mol

VQ-029551

Reference Standard

(S)-1-(3-Ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethylamine N-acetyl-l- leucine salt chemical structure

(S)-1-(3-Ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethylamine N-acetyl-l- leucine salt

CAS: 608141-43-1
Formula: C₂₀H₃₄N₂O₇S
MW: 446.6 g/mol

VQ-024331

Reference Standard

(S)-1-(3-Hydroxypiperidin-1-yl)prop-2-en-1-one chemical structure

(S)-1-(3-Hydroxypiperidin-1-yl)prop-2-en-1-one

CAS: 1642601-01-1
Formula: C₈H₁₃NO₂
MW: 155.19 g/mol

VQ-048608

Reference Standard

(S)-1-(3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)-N-methylmethanamine chemical structure

(S)-1-(3,4-Dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)-N-methylmethanamine

CAS: 866783-12-2
Formula: C₁₂H₁₇NO₂
MW: 207.27 g/mol

VQ-026267

Reference Standard

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethan-1-amine chemical structure

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethan-1-amine

CAS: 1626481-45-5
Formula: C₁₃H₁₀Br₂F₂N₂
MW: 392.04 g/mol

VQ-037930

Reference Standard

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethanamine (R)-2-hydroxy-2-phenylacetate

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethanamine (R)-2-hydroxy-2-phenylacetate

CAS: 2375019-74-0
Formula: C₂₁H₁₈Br₂F₂N₂O₃
MW: 544.18 g/mol

VQ-037935

Reference Standard

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethanamine Hydrochloride chemical structure

(S)-1-(3,6-Dibromopyridin-2-yl)-2-(3,5-difluorophenyl)ethanamine Hydrochloride

CAS: 1626335-72-5
Formula: C₁₃H₁₁Br₂ClF₂N₂
MW: 428.5 g/mol

VQ-037932

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