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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

1-Bromocyclopentyl 2-Chlorophenyl Ketone chemical structure

1-Bromocyclopentyl 2-Chlorophenyl Ketone

CAS: 6740-86-9
Formula: C₁₂H₁₂BrClO
MW: 287.58 g/mol

VQ-032526

Reference Standard

1-Bromoethyl Acetate chemical structure

1-Bromoethyl Acetate

CAS: 40258-78-4
Formula: C₄H₇BrO₂
MW: 167 g/mol

VQ-039155

Reference Standard

1-Bromonaphthalene-D7 chemical structure

1-Bromonaphthalene-D7

CAS: 37621-57-1
Formula: C₁₀H₇Br
MW: 214.11 g/mol

VQ-047637

Reference Standard

1-Bromopropane-3,3,3-D3 chemical structure

1-Bromopropane-3,3,3-D3

CAS: 61809-88-9
Formula: C₃H₇Br
MW: 126.01 g/mol

VQ-041158

Reference Standard

1-Butyl-N-(2,4-dimethylphenyl)piperidine-2-carboxamide chemical structure

1-Butyl-N-(2,4-dimethylphenyl)piperidine-2-carboxamide

CAS: 2774312-11-5
Formula: C₁₈H₂₈N₂O
MW: 288.4 g/mol

VQ-024686

Reference Standard

1-Butylpiperidine Hydrochloride chemical structure

1-Butylpiperidine Hydrochloride

CAS: 80840-88-6
Formula: C₉H₂₀ClN
MW: 177.71 g/mol

VQ-048117

Reference Standard

1-Chloro-2-(4-ethoxybenzyl)-4-iodobenzene chemical structure

1-Chloro-2-(4-ethoxybenzyl)-4-iodobenzene

CAS: 1103738-29-9
Formula: C₁₅H₁₄ClIO
MW: 372.63 g/mol

VQ-030021

Reference Standard

1-Chloro-2-(4-ethoxybenzyl)benzene chemical structure

1-Chloro-2-(4-ethoxybenzyl)benzene

CAS: 1662702-90-0
Formula: C₁₅H₁₅ClO
MW: 246.73 g/mol

VQ-022304

Reference Standard

1-Chloro-2-(chloro(phenyl)methyl)benzene chemical structure

1-Chloro-2-(chloro(phenyl)methyl)benzene

CAS: 56961-47-8
Formula: C₁₃H₁₀Cl₂
MW: 237.12 g/mol

VQ-047731

Reference Standard

1-Chloro-2-(dichloromethyl)benzene chemical structure

1-Chloro-2-(dichloromethyl)benzene

CAS: 88-66-4
Formula: C₇H₅Cl₃
MW: 195.5 g/mol

VQ-026589

Reference Standard

1-Chloro-2-(dichlorophenylmethyl)benzene chemical structure

1-Chloro-2-(dichlorophenylmethyl)benzene

CAS: 3509-85-1
Formula: C₁₃H₉Cl₃
MW: 271.6 g/mol

VQ-029909

Reference Standard

1-Chloro-2-methyl-2-propanol chemical structure

1-Chloro-2-methyl-2-propanol

CAS: 558-42-9
Formula: C₄H₉ClO
MW: 108.57 g/mol

VQ-037952

Reference Standard

1-Chloro-2-methylpropane chemical structure

1-Chloro-2-methylpropane

CAS: 513-36-0
Formula: C₄H₉Cl
MW: 92.57 g/mol

VQ-026330

Reference Standard

1-Chloro-3-(1-naphthoxy)-2-propanol chemical structure

1-Chloro-3-(1-naphthoxy)-2-propanol

CAS: 20133-93-1
Formula: C₁₃H₁₃ClO₂
MW: 236.69 g/mol

VQ-033375

Reference Standard

1-Chloro-3-(chlorophenylmethyl)benzene chemical structure

1-Chloro-3-(chlorophenylmethyl)benzene

CAS: 13391-39-4
Formula: C₁₃H₁₀Cl₂
MW: 237.12 g/mol

VQ-047732

Reference Standard

1-Chloro-3-(isopropylamino)propan-2-ol chemical structure

1-Chloro-3-(isopropylamino)propan-2-ol

CAS: 50666-68-7
Formula: C₆H₁₄ClNO
MW: 151.63 g/mol

VQ-038380

Reference Standard

1-Chloro-4-(4-chlorophenyl)butan-2-ol chemical structure

1-Chloro-4-(4-chlorophenyl)butan-2-ol

CAS: 59363-13-2
Formula: C₁₀H₁₂Cl₂O
MW: 219.1 g/mol

VQ-028917

Reference Standard

1-Chloro-4-isocyanato-2-(trifluoromethyl)benzene chemical structure

1-Chloro-4-isocyanato-2-(trifluoromethyl)benzene

CAS: 327-78-6
Formula: C₈H₃ClF₃NO
MW: 221.56 g/mol

VQ-039471

Reference Standard

1-Chloro-4-methoxybutane liquid chemical structure

1-Chloro-4-methoxybutane liquid

CAS: 17913-18-7
Formula: C₅H₁₁ClO
MW: 122.59 g/mol

VQ-038861

Reference Standard

1-Chloro-5-iodopentane chemical structure

1-Chloro-5-iodopentane

CAS: 60274-60-4
Formula: C₅H₁₀ClI
MW: 232.49 g/mol

VQ-027301

Reference Standard

1-Chloro-5-methoxy-2-methyl-4-nitrobenzene chemical structure

1-Chloro-5-methoxy-2-methyl-4-nitrobenzene

CAS: 100777-46-6
Formula: C₈H₈ClNO₃
MW: 201.61 g/mol

VQ-035321

Reference Standard

1-Chlorodecane chemical structure

CAS: 1002-69-3
Formula: C₁₀H₂₁Cl
MW: 176.72 g/mol

VQ-032315

Reference Standard

1-Chlorophenothiazine chemical structure

1-Chlorophenothiazine

CAS: 1910-85-6
Formula: C₁₂H₈ClNS
MW: 233.72 g/mol

VQ-036264

Reference Standard

1-Cyano-6-(methylsulfonyl)-7-nitro-9H-xanthen-9-one chemical structure

1-Cyano-6-(methylsulfonyl)-7-nitro-9H-xanthen-9-one

CAS: 2469274-10-8
Formula: C₁₅H₈N₂O₆S
MW: 344.3 g/mol

VQ-034971

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