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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-Isobutylphenyl)propanoic Acid chemical structure

2-(2-Isobutylphenyl)propanoic Acid

CAS: 69363-33-3
Formula: C₁₃H₁₈O₂
MW: 206.28 g/mol

VQ-026124

Reference Standard

2-(2-Methoxyethyl)phenol chemical structure

2-(2-Methoxyethyl)phenol

CAS: 330976-39-1
Formula: C₉H₁₂O₂
MW: 152.19 g/mol

VQ-032561

Reference Standard

2-(2-Methoxyphenoxy)-1,3-propanediol-d4 chemical structure

2-(2-Methoxyphenoxy)-1,3-propanediol-d4

CAS: 114609-65-3
Formula: C₁₀H₁₄O₄
MW: 202.24 g/mol

VQ-043421

Reference Standard

2-(2-Methoxyphenoxy)-N-methylethanamine chemical structure

2-(2-Methoxyphenoxy)-N-methylethanamine

CAS: 72955-82-9
Formula: C₁₀H₁₅NO₂
MW: 181.23 g/mol

VQ-049095

Reference Standard

2-(2-Methoxyphenoxy)ethylamine hydrochloride monohydrate chemical structure

2-(2-Methoxyphenoxy)ethylamine hydrochloride monohydrate

CAS: 2057412-43-6
Formula: C₉H₁₆ClNO₃
MW: 221.68 g/mol

VQ-022035

Reference Standard

2-(2-Methyl-2H-tetrazol-5-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine chemical structure

2-(2-Methyl-2H-tetrazol-5-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

CAS: 1056039-83-8
Formula: C₁₃H₁₈BN₅O₂
MW: 287.13 g/mol

VQ-023842

Reference Standard

2-(2-Methyl-3-nitrophenyl)-N,N-dipropylacetamide chemical structure

2-(2-Methyl-3-nitrophenyl)-N,N-dipropylacetamide

CAS: 91374-22-0
Formula: C₁₅H₂₂N₂O₃
MW: 278.35 g/mol

VQ-041999

Reference Standard

2-(2-Methyl-3-nitrophenyl)ethan-1-ol chemical structure

2-(2-Methyl-3-nitrophenyl)ethan-1-ol

CAS: 855382-76-2
Formula: C₉H₁₁NO₃
MW: 181.19 g/mol

VQ-032953

Reference Standard

2-(2-Methyl-4-nitro-1H-imidazol-1-yl)ethyl Benzoate chemical structure

2-(2-Methyl-4-nitro-1H-imidazol-1-yl)ethyl Benzoate

CAS: 87009-72-1
Formula: C₁₃H₁₃N₃O₄
MW: 275.26 g/mol

VQ-031860

Reference Standard

2-(2-Methylphenyl)benzonitrile chemical structure

2-(2-Methylphenyl)benzonitrile

CAS: 157366-46-6
Formula: C₁₄H₁₁N
MW: 193.24 g/mol

VQ-043217

Reference Standard

2-(2-tert-Butoxyethoxy)-1H-isoindole-1,3(2H)-dione chemical structure

2-(2-tert-Butoxyethoxy)-1H-isoindole-1,3(2H)-dione

CAS: 870243-67-7
Formula: C₁₄H₁₇NO₄
MW: 263.29 g/mol

VQ-033805

Reference Standard

2-(2,3-Dichlorphenyl)-2-(guanidinylimino)acetonitrile chemical structure

2-(2,3-Dichlorphenyl)-2-(guanidinylimino)acetonitrile

CAS: 84689-20-3
Formula: C₉H₇Cl₂N₅
MW: 256.09 g/mol

VQ-026342

Reference Standard

2-(2,3-Difluorophenyl)cyclopropan-1-amine chemical structure

2-(2,3-Difluorophenyl)cyclopropan-1-amine

CAS: 1274778-02-7
Formula: C₉H₉F₂N
MW: 169.17 g/mol

VQ-034254

Reference Standard

2-(2,3-Dihydroxy-3,7,11,15-tetramethylhexadecyl)-3-methylnaphthalene-1,4-dione chemical structure

2-(2,3-Dihydroxy-3,7,11,15-tetramethylhexadecyl)-3-methylnaphthalene-1,4-dione

CAS: 107759-10-4
Formula: C₃₁H₄₈O₄
MW: 484.7 g/mol

VQ-033166

Reference Standard

2-(2,3-Dihydroxypropyl)isoindoline-1,3-dione chemical structure

2-(2,3-Dihydroxypropyl)isoindoline-1,3-dione

CAS: 62457-35-6
Formula: C₁₁H₁₁NO₄
MW: 221.21 g/mol

VQ-033597

Reference Standard

2-(2,3-Dimethoxyphenyl)acetonitrile chemical structure

2-(2,3-Dimethoxyphenyl)acetonitrile

CAS: 4468-57-9
Formula: C₁₀H₁₁NO₂
MW: 177.2 g/mol

VQ-032783

Reference Standard

2-(2,3-Dimethylphenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one chemical structure

2-(2,3-Dimethylphenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

CAS: 118048-94-5
Formula: C₁₂H₁₄N₂O
MW: 202.25 g/mol

VQ-036959

Reference Standard

2-(2,4-Dichlorophenyl)-2-methyl-4-propyl-1,3-dioxolane chemical structure

2-(2,4-Dichlorophenyl)-2-methyl-4-propyl-1,3-dioxolane

CAS: 83833-32-3
Formula: C₁₃H₁₆Cl₂O₂
MW: 275.17 g/mol

VQ-033365

Reference Standard

2-(2,4-Difluorophenyl)-1,2,3-propanetriol chemical structure

2-(2,4-Difluorophenyl)-1,2,3-propanetriol

CAS: 173837-65-5
Formula: C₉H₁₀F₂O₃
MW: 204.17 g/mol

VQ-025810

Reference Standard

2-(2,4-Difluorophenyl)-2-propen-1-ol chemical structure

2-(2,4-Difluorophenyl)-2-propen-1-ol

CAS: 141113-36-2
Formula: C₉H₈F₂O
MW: 170.16 g/mol

VQ-041559

Reference Standard

2-(2,4-Difluorophenyl)-3-(5-fluoro-6-(1-(5-fluoropyrimidin-4-yl)ethyl)pyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol chemical structure

2-(2,4-Difluorophenyl)-3-(5-fluoro-6-(1-(5-fluoropyrimidin-4-yl)ethyl)pyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol

CAS: 321589-00-8
Formula: C₂₂H₁₉F₄N₇O
MW: 473.4 g/mol

VQ-044590

Reference Standard

2-(2,4-Difluorophenyl)aniline chemical structure

2-(2,4-Difluorophenyl)aniline

CAS: 76838-87-4
Formula: C₁₂H₉F₂N
MW: 205.2 g/mol

VQ-040039

Reference Standard

2-(2,4-Dihydroxy-5-methoxybenzamido)-N-(2-(diisopropylamino)ethyl)thiazole-4-carboxamide chemical structure

2-(2,4-Dihydroxy-5-methoxybenzamido)-N-(2-(diisopropylamino)ethyl)thiazole-4-carboxamide

CAS: 738562-93-1
Formula: C₂₀H₂₈N₄O₅S
MW: 436.5 g/mol

VQ-021422

Reference Standard

2-(2,4,5-Trimethoxybenzamido)thiazole-4-carboxylic Acid

2-(2,4,5-Trimethoxybenzamido)thiazole-4-carboxylic Acid

CAS: 185106-01-8
Formula: C₁₄H₁₄N₂O₆S
MW: 338.34 g/mol

VQ-035602

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