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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

5-(((3,4-Dimethoxyphenyl)amino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione chemical structure

5-(((3,4-Dimethoxyphenyl)amino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione

CAS: 213699-53-7
Formula: C₁₅H₁₇NO₆
MW: 307.3 g/mol

VQ-042575

Reference Standard

5-((1R)-2-((5-Ethyl-2,3-dihydro-1H-inden-2-yl)amino)-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one chemical structure

5-((1R)-2-((5-Ethyl-2,3-dihydro-1H-inden-2-yl)amino)-1-hydroxyethyl)-8-hydroxyquinolin-2(1H)-one

CAS: 1026461-20-0
Formula: C₂₂H₂₄N₂O₃
MW: 364.4 g/mol

VQ-026159

Reference Standard

5-((1S)-1-Oxido-1,2-dithiolan-3-yl)pentanoic Acid chemical structure

5-((1S)-1-Oxido-1,2-dithiolan-3-yl)pentanoic Acid

CAS: 2114407-78-0
Formula: C₈H₁₄O₃S₂
MW: 222.3 g/mol

VQ-038080

Reference Standard

5-((2-(2-Fluorophenyl)-4-((methylamino)methyl)-1H-pyrrol-1-yl)sulfonyl)-1,2,3,4-tetrahydropyridin-2-ol chemical structure

5-((2-(2-Fluorophenyl)-4-((methylamino)methyl)-1H-pyrrol-1-yl)sulfonyl)-1,2,3,4-tetrahydropyridin-2-ol

CAS: 2416241-96-6
Formula: C₁₇H₂₀FN₃O₃S
MW: 365.4 g/mol

VQ-028737

Reference Standard

5-((2-(2,2-Difluoroethoxy)-6-(trifluoromethyl)phenyl)sulfonamido)-4H-1,2,4-triazole-3-carboxylic acid chemical structure

5-((2-(2,2-Difluoroethoxy)-6-(trifluoromethyl)phenyl)sulfonamido)-4H-1,2,4-triazole-3-carboxylic acid

CAS: 907215-84-3
Formula: C₁₂H₉F₅N₄O₅S
MW: 416.28 g/mol

VQ-045201

Reference Standard

5-((2S)-2-Oxido-1,2-dithiolan-3-yl)pentanoic Acid chemical structure

5-((2S)-2-Oxido-1,2-dithiolan-3-yl)pentanoic Acid

CAS: 2114407-82-6
Formula: C₈H₁₄O₃S₂
MW: 222.3 g/mol

VQ-031593

Reference Standard

5-((3-((2-Carboxyethyl)carbamoyl)phenyl)diazenyl)-2-hydroxybenzoic Acid chemical structure

5-((3-((2-Carboxyethyl)carbamoyl)phenyl)diazenyl)-2-hydroxybenzoic Acid

CAS: 1798395-96-6
Formula: C₁₇H₁₅N₃O₆
MW: 357.32 g/mol

VQ-021735

Reference Standard

5-((3,4-Dimethoxyphenethyl)(methyl)amino)-2-(3-hydroxy-4-methoxyphenyl)-2-isopropylpentanenitrile chemical structure

5-((3,4-Dimethoxyphenethyl)(methyl)amino)-2-(3-hydroxy-4-methoxyphenyl)-2-isopropylpentanenitrile

CAS: 114847-42-6
Formula: C₂₆H₃₆N₂O₄
MW: 440.6 g/mol

VQ-035366

Reference Standard

5-((3,4-Dimethoxyphenethyl)(methyl)amino)-2-(4-hydroxy-3-methoxyphenyl)-2-isopropylpentanenitrile chemical structure

5-((3,4-Dimethoxyphenethyl)(methyl)amino)-2-(4-hydroxy-3-methoxyphenyl)-2-isopropylpentanenitrile

CAS: 67018-80-8
Formula: C₂₆H₃₆N₂O₄
MW: 440.6 g/mol

VQ-042857

Reference Standard

5-((3AS,4R,5R,6aS)-5-Hydroxy-4-((S,E)-3-hydroxyoct-1-en-1-yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[b]furan-2-yl)pentanoic acid, sodium Salt

5-((3AS,4R,5R,6aS)-5-Hydroxy-4-((S,E)-3-hydroxyoct-1-en-1-yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[b]furan-2-yl)pentanoic acid, sodium Salt

CAS: 68979-98-6
Formula: C₂₀H₃₁NaO₅
MW: 374.45 g/mol

VQ-030517

Reference Standard

5-((4-((1,3-Dimethyl-1H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylbenzenesulfonamide chemical structure

5-((4-((1,3-Dimethyl-1H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylbenzenesulfonamide

CAS: 2369664-25-3
Formula: C₂₁H₂₃N₇O₂S
MW: 437.5 g/mol

VQ-033081

Reference Standard

5-((4-((2,3-Dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylbenzenesulfonic Acid chemical structure

5-((4-((2,3-Dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylbenzenesulfonic Acid

CAS: 2795176-90-6
Formula: C₂₁H₂₂N₆O₃S
MW: 438.5 g/mol

VQ-041363

Reference Standard

5-((4-((2,3-Dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-N-((5-((4-((2,3-dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylphenyl)sulfonyl)-2-methylbenzenesulfonamide chemical structure

5-((4-((2,3-Dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-N-((5-((4-((2,3-dimethyl-2H-indazol-6-yl)(methyl)amino)pyrimidin-2-yl)amino)-2-methylphenyl)sulfonyl)-2-methylbenzenesulfonamide

CAS: 2095544-42-4
Formula: C₄₂H₄₃N₁₃O₄S₂
MW: 858 g/mol

VQ-041361

Reference Standard

5-((4-Bromo-2-fluorophenyl)amino)-4-fluoro-1-methyl-N-(2-(vinyloxy)ethoxy)-1H-benzo[d]imidazole-6-carboxamide chemical structure

5-((4-Bromo-2-fluorophenyl)amino)-4-fluoro-1-methyl-N-(2-(vinyloxy)ethoxy)-1H-benzo[d]imidazole-6-carboxamide

CAS: 1415559-75-9
Formula: C₁₉H₁₇BrF₂N₄O₃
MW: 467.3 g/mol

VQ-032850

Reference Standard

5-((4-Methylpiperazin-1-yl)methyl)pyridin-2-amine chemical structure

5-((4-Methylpiperazin-1-yl)methyl)pyridin-2-amine

CAS: 1197333-44-0
Formula: C₁₁H₁₈N₄
MW: 206.29 g/mol

VQ-040631

Reference Standard

5-((Cinnamyloxy)carbonyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid chemical structure

5-((Cinnamyloxy)carbonyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid

CAS: 123853-41-8
Formula: C₂₄H₂₂N₂O₆
MW: 434.4 g/mol

VQ-022180

Reference Standard

5-((R)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-2-methyl-1-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)cyclopropyl)-1H-indole-2-carboxylic Acid chemical structure

5-((R)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-2-methyl-1-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)cyclopropyl)-1H-indole-2-carboxylic Acid

CAS: 3067284-94-7
Formula: C₂₂H₂₅N₃O₅
MW: 411.5 g/mol

VQ-045129

Reference Standard

5-((S)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-1-((Z)-N'-hydroxycarbamimidoyl)-2-methylcyclopropyl)-N-methyl-N-phenyl-1H-indole-2-carboxamide chemical structure

5-((S)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-1-((Z)-N'-hydroxycarbamimidoyl)-2-methylcyclopropyl)-N-methyl-N-phenyl-1H-indole-2-carboxamide

CAS: 3047556-95-3
Formula: C₂₈H₃₄N₄O₃
MW: 474.6 g/mol

VQ-049331

Reference Standard

5-((S)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-2-methyl-1-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)cyclopropyl)-1H-indole-2-carboxylic acid chemical structure

5-((S)-2,2-Dimethyltetrahydro-2H-pyran-4-yl)-1-((1S,2S)-2-methyl-1-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)cyclopropyl)-1H-indole-2-carboxylic acid

CAS: 2212021-83-3
Formula: C₂₂H₂₅N₃O₅
MW: 411.5 g/mol

VQ-040141

Reference Standard

5-(1-Hydroxy-2-(isopropylamino)ethyl)-2-methoxyphenol chemical structure

5-(1-Hydroxy-2-(isopropylamino)ethyl)-2-methoxyphenol

CAS: 3413-49-8
Formula: C₁₂H₁₉NO₃
MW: 225.28 g/mol

VQ-028830

Reference Standard

5-(1-Hydroxyethyl)-1H-pyrazole-3-carboxylic acid chemical structure

5-(1-Hydroxyethyl)-1H-pyrazole-3-carboxylic acid

CAS: 1401584-94-8
Formula: C₆H₈N₂O₃
MW: 156.14 g/mol

VQ-030063

Reference Standard

5-(1-Piperazinyl)-2-benzofurancarboxylic Acid Methyl Ester chemical structure

5-(1-Piperazinyl)-2-benzofurancarboxylic Acid Methyl Ester

CAS: 1186225-86-4
Formula: C₁₄H₁₆N₂O₃
MW: 260.29 g/mol

VQ-043901

Reference Standard

5-(1,1-Dimethylpropyl)-2-hydroxybenzenesulfonic acid

5-(1,1-Dimethylpropyl)-2-hydroxybenzenesulfonic acid

CAS: 752958-44-4
Formula: C₁₁H₁₆O₄S
MW: 244.31 g/mol

VQ-040947

Reference Standard

5-(1,1-Dioxido-1,2-dithiolan-3-yl)pentanoic Acid chemical structure

5-(1,1-Dioxido-1,2-dithiolan-3-yl)pentanoic Acid

CAS: 17370-41-1
Formula: C₈H₁₄O₄S₂
MW: 238.3 g/mol

VQ-042496

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