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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

(R)-1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)-N-(1-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-6-fluoro-2-(1-hydroxy-2-methylpropan-2-yl)-1H-indol-5-yl)cyclopropane-1-carboxamide chemical structure

(R)-1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)-N-(1-((2,2-dimethyl-1,3-dioxolan-4-yl)methyl)-6-fluoro-2-(1-hydroxy-2-methylpropan-2-yl)-1H-indol-5-yl)cyclopropane-1-carboxamide

CAS: 1152311-90-4
Formula: C₂₉H₃₁F₃N₂O₆
MW: 560.6 g/mol

VQ-044420

Reference Standard

(R)-1-(2,4-Dichlorophenyl)-2-(2H-tetrazol-2-yl)ethyl carbamate chemical structure

(R)-1-(2,4-Dichlorophenyl)-2-(2H-tetrazol-2-yl)ethyl carbamate

CAS: 913088-92-3
Formula: C₁₀H₉Cl₂N₅O₂
MW: 302.11 g/mol

VQ-024903

Reference Standard

(R)-1-(2,4-Difluorophenyl)-2-hydroxypropan-1-one chemical structure

(R)-1-(2,4-Difluorophenyl)-2-hydroxypropan-1-one

CAS: 126918-16-9
Formula: C₉H₈F₂O₂
MW: 186.15 g/mol

VQ-030392

Reference Standard

(R)-1-(3-((1-Methylpyrrolidin-2-yl)methyl)-5-(2-(phenylsulfonyl)ethyl)-1H-indol-1-yl)ethan-1-one chemical structure

(R)-1-(3-((1-Methylpyrrolidin-2-yl)methyl)-5-(2-(phenylsulfonyl)ethyl)-1H-indol-1-yl)ethan-1-one

CAS: 438226-82-5
Formula: C₂₄H₂₈N₂O₃S
MW: 424.6 g/mol

VQ-036934

Reference Standard

(R)-1-(3-(3-(4-Phenoxyphenyl)-4-((triphenyl-l5-phosphanylidene)amino)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)prop-2-en-1-one

(R)-1-(3-(3-(4-Phenoxyphenyl)-4-((triphenyl-l5-phosphanylidene)amino)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)prop-2-en-1-one

CAS: 2064175-44-4
Formula: C₄₃H₃₇N₆O₂P
MW: 700.8 g/mol

VQ-031124

Reference Standard

(R)-1-(3-Aminophenyl)-2-(methylamino)ethan-1-ol

(R)-1-(3-Aminophenyl)-2-(methylamino)ethan-1-ol

CAS: 50741-74-7
Formula: C₉H₁₄N₂O
MW: 166.2 g/mol

VQ-033693

Reference Standard

(R)-1-(3,4-Dihydroxyphenyl)-2-(methylamino)ethyl hydrogen Sulfate chemical structure

(R)-1-(3,4-Dihydroxyphenyl)-2-(methylamino)ethyl hydrogen Sulfate

CAS: 139183-81-6
Formula: C₉H₁₃NO₆S
MW: 263.27 g/mol

VQ-021441

Reference Standard

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

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

CAS: 1132667-04-9
Formula: C₁₂H₁₇NO₂
MW: 207.27 g/mol

VQ-031319

Reference Standard

(R)-1-(4-(Benzyloxy)-3-nitrophenyl)-2-bromoethan-1-ol chemical structure

(R)-1-(4-(Benzyloxy)-3-nitrophenyl)-2-bromoethan-1-ol

CAS: 188690-82-6
Formula: C₁₅H₁₄BrNO₄
MW: 352.18 g/mol

VQ-047440

Reference Standard

(R)-1-(4-Fluorophenyl)-1-(2-(piperazin-1-yl)pyrimidin-5-yl)ethan-1-amine

(R)-1-(4-Fluorophenyl)-1-(2-(piperazin-1-yl)pyrimidin-5-yl)ethan-1-amine

CAS: 1704492-16-9
Formula: C₁₆H₂₀FN₅
MW: 301.37 g/mol

VQ-035864

Reference Standard

(R)-1-(4-Fluorophenyl)-5-(2-oxo-4-phenyloxazolidin-3-yl)pentane-1,5-dione chemical structure

(R)-1-(4-Fluorophenyl)-5-(2-oxo-4-phenyloxazolidin-3-yl)pentane-1,5-dione

CAS: 404874-93-7
Formula: C₂₀H₁₈FNO₄
MW: 355.4 g/mol

VQ-030653

Reference Standard

(R)-1-(4-Phenyl-1H-imidazol-2-yl)ethanamine chemical structure

(R)-1-(4-Phenyl-1H-imidazol-2-yl)ethanamine

CAS: 335246-81-6
Formula: C₁₁H₁₃N₃
MW: 187.24 g/mol

VQ-025517

Reference Standard

(R)-1-(5,6-Dihydronaphthalen-1-yl)ethanamine chemical structure

(R)-1-(5,6-Dihydronaphthalen-1-yl)ethanamine

CAS: 1020414-30-5
Formula: C₁₂H₁₅N
MW: 173.25 g/mol

VQ-043116

Reference Standard

(R)-1-(6-Amino-7H-purin-7-yl)propan-2-ol chemical structure

(R)-1-(6-Amino-7H-purin-7-yl)propan-2-ol

CAS: 2560586-26-5
Formula: C₈H₁₁N₅O
MW: 193.21 g/mol

VQ-042426

Reference Standard

(R)-1-(7,8-Dihydronaphthalen-1-yl)ethanamine chemical structure

(R)-1-(7,8-Dihydronaphthalen-1-yl)ethanamine

CAS: 802918-45-2
Formula: C₁₂H₁₅N
MW: 173.25 g/mol

VQ-029815

Reference Standard

(R)-1-(Naphthalen-2-yl)ethanamine chemical structure

(R)-1-(Naphthalen-2-yl)ethanamine

CAS: 3906-16-9
Formula: C₁₂H₁₃N
MW: 171.24 g/mol

VQ-039003

Reference Standard

(R)-1-(Naphthalen-2-yl)propan-1-amine chemical structure

(R)-1-(Naphthalen-2-yl)propan-1-amine

CAS: 254437-97-3
Formula: C₁₃H₁₅N
MW: 185.26 g/mol

VQ-043940

Reference Standard

(R)-1-[(4-Chlorophenyl)phenylmethyl]piperazine chemical structure

(R)-1-[(4-Chlorophenyl)phenylmethyl]piperazine

CAS: 300543-56-0
Formula: C₁₇H₁₉ClN₂
MW: 286.8 g/mol

VQ-026432

Reference Standard

(R)-1-[3-(Acetylthio)-2-methyl-1-oxopropyl] L-Proline chemical structure

(R)-1-[3-(Acetylthio)-2-methyl-1-oxopropyl] L-Proline

CAS: 65167-28-4
Formula: C₁₁H₁₇NO₄S
MW: 259.32 g/mol

VQ-034802

Reference Standard

(R)-1-Aminoindane chemical structure

(R)-1-Aminoindane

CAS: 10277-74-4
Formula: C₉H₁₁N
MW: 133.19 g/mol

VQ-027761

Reference Standard

(R)-1-Boc-3-Hydroxypiperidine chemical structure

(R)-1-Boc-3-Hydroxypiperidine

CAS: 143900-43-0
Formula: C₁₀H₁₉NO₃
MW: 201.26 g/mol

VQ-031119

Reference Standard

(R)-1-Methylindoline-3,5,6-triol chemical structure

(R)-1-Methylindoline-3,5,6-triol

CAS: 62322-82-1
Formula: C₉H₁₁NO₃
MW: 181.19 g/mol

VQ-044520

Reference Standard

(R)-1-Methylpyrrolidin-3-yl (R)-2-cyclopentyl-2-hydroxy-2-phenylacetate chemical structure

(R)-1-Methylpyrrolidin-3-yl (R)-2-cyclopentyl-2-hydroxy-2-phenylacetate

CAS: 616866-21-8
Formula: C₁₈H₂₅NO₃
MW: 303.4 g/mol

VQ-031025

Reference Standard

(R)-1-Nitroso piperidin-3-amine chemical structure

(R)-1-Nitroso piperidin-3-amine

CAS: 3031851-91-6
Formula: C₅H₁₁N₃O
MW: 129.16 g/mol

VQ-045046

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