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Impurity Reference Standards

Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.

20,060 products6 categories2,050 in stockCOA + SDS with every lot

20,060 products · page 71 of 836

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1-Benzyl-4-hydroxy-N,N,2-trimethyl-1H-benzo[d]imidazole-6-carboxamide

CAS: 1640981-20-9
Formula: C₁₈H₁₉N₃O₂
MW: 309.4 g/mol

ZX-027120

1-Benzyl-4-methylpiperidin-3-one

CAS: 32018-96-5
Formula: C₁₃H₁₇NO
MW: 203.28 g/mol

ZX-042601

1-Benzyl-4-piperidino-isonipecotamide

CAS: 1762-50-1
Formula: C₁₈H₂₇N₃O
MW: 301.4 g/mol

ZX-032840

1-Benzylpiperidine

CAS: 2905-56-8
Formula: C₁₂H₁₇N
MW: 175.27 g/mol

ZX-031438

1-Benzylpiperidine-4-carbaldehyde

CAS: 22065-85-6
Formula: C₁₃H₁₇NO
MW: 203.28 g/mol

ZX-026088

1-Benzylpiperidine-4-carboxylic acid Hydrochloride

CAS: 681482-53-1
Formula: C₁₃H₁₈ClNO₂
MW: 255.74 g/mol

ZX-040128

1-Beta-Hydroxy-1-(2-thienyl)-3-methylaminopropan

CAS: 116539-56-1
Formula: C₈H₁₃NOS
MW: 171.26 g/mol

ZX-024408

1-Boc-3-azetidinone

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

ZX-035134

1-Boc-3-hydroxypiperidine

CAS: 85275-45-2
Formula: C₁₀H₁₉NO₃
MW: 201.26 g/mol

ZX-046279

1-Boc-4-aminopiperidine-4-carboxylic Acid

CAS: 183673-71-4
Formula: C₁₁H₂₀N₂O₄
MW: 244.29 g/mol

ZX-045870

1-BOC-4-hydroxypiperidine

CAS: 109384-19-2
Formula: C₁₀H₁₉NO₃
MW: 201.26 g/mol

ZX-033589

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

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

ZX-022517

1-Bromo-2-chloroethane

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

ZX-026072

1-Bromo-2-phenoxyethane

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

ZX-036778

1-Bromo-3-chloropropane-13C3

CAS: 1173023-11-4
Formula: C₃H₆BrCl
MW: 160.41 g/mol

ZX-044745

1-Bromo-3-methyladamantane

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

ZX-022091

1-Bromo-3,5-dimethyladamantane

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

ZX-022087

1-Bromo-3,5,7-trimethyladamantane

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

ZX-022092

1-Bromo-4-(methoxy-d3)benzene

CAS: 100835-59-4
Formula: C₇H₇BrO
MW: 190.05 g/mol

ZX-044169

1-Bromo-4-methoxybutane

CAS: 4457-67-4
Formula: C₅H₁₁BrO
MW: 167.04 g/mol

ZX-040157

1-Bromo-5-iodopentane

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

ZX-026221

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

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

ZX-029656

1-Bromobutane-d3

CAS: 55724-42-0
Formula: C₄H₉Br
MW: 140.04 g/mol

ZX-043151

1-Bromobutane-d9

CAS: 98195-36-9
Formula: C₄H₉Br
MW: 146.07 g/mol

ZX-035873

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