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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

1-Boc-3-azetidinone chemical structure

1-Boc-3-azetidinone

CAS: 398489-26-4
Formula: C₈H₁₃NO₃
MW: 171.19 g/mol

VQ-040205

Reference Standard

1-Bromo-1-(2-fluorophenyl)-2-propanone chemical structure

1-Bromo-1-(2-fluorophenyl)-2-propanone

CAS: 1181569-67-4
Formula: C₉H₈BrFO
MW: 231.06 g/mol

VQ-041598

Reference Standard

1-Bromo-2-(2,4-difluorophenyl)propan-2-ol chemical structure

1-Bromo-2-(2,4-difluorophenyl)propan-2-ol

CAS: 159276-57-0
Formula: C₉H₉BrF₂O
MW: 251.07 g/mol

VQ-041560

Reference Standard

1-Bromo-2-(bromomethyl)-4,5-dimethoxybenzene chemical structure

1-Bromo-2-(bromomethyl)-4,5-dimethoxybenzene

CAS: 53207-00-4
Formula: C₉H₁₀Br₂O₂
MW: 309.98 g/mol

VQ-023496

Reference Standard

1-Bromo-2-chloroethane chemical structure

1-Bromo-2-chloroethane

CAS: 107-04-0
Formula: C₂H₄BrCl
MW: 143.41 g/mol

VQ-027151

Reference Standard

1-Bromo-2-oxocyclohexane-1-carboxamide

1-Bromo-2-oxocyclohexane-1-carboxamide

CAS: 80193-05-1
Formula: C₇H₁₀BrNO₂
MW: 220.06 g/mol

VQ-048536

Reference Standard

1-Bromo-2-phenoxyethane chemical structure

1-Bromo-2-phenoxyethane

CAS: 589-10-6
Formula: C₈H₉BrO
MW: 201.06 g/mol

VQ-044533

Reference Standard

1-Bromo-3-methyladamantane chemical structure

1-Bromo-3-methyladamantane

CAS: 702-77-2
Formula: C₁₁H₁₇Br
MW: 229.16 g/mol

VQ-023065

Reference Standard

1-Bromo-3,5-dimethyladamantane chemical structure

1-Bromo-3,5-dimethyladamantane

CAS: 941-37-7
Formula: C₁₂H₁₉Br
MW: 243.18 g/mol

VQ-023061

Reference Standard

1-Bromo-3,5,7-trimethyladamantane chemical structure

1-Bromo-3,5,7-trimethyladamantane

CAS: 53398-55-3
Formula: C₁₃H₂₁Br
MW: 257.21 g/mol

VQ-023066

Reference Standard

1-Bromo-5-iodopentane chemical structure

1-Bromo-5-iodopentane

CAS: 88962-86-1
Formula: C₅H₁₀BrI
MW: 276.94 g/mol

VQ-027302

Reference Standard

1-Bromo-9-(tert-butyldimethylsilyloxy)nonane chemical structure

1-Bromo-9-(tert-butyldimethylsilyloxy)nonane

CAS: 149051-24-1
Formula: C₁₅H₃₃BrOSi
MW: 337.41 g/mol

VQ-030899

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-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

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