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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

N-Benzyl-N-methyl-1H-imidazole-1-carboxamide chemical structure

N-Benzyl-N-methyl-1H-imidazole-1-carboxamide

CAS: 548763-27-5
Formula: C₁₂H₁₃N₃O
MW: 215.25 g/mol

VQ-044925

Reference Standard

N-Benzyl-N,N-dimethyl-1- phenylmethanaminium bromide chemical structure

N-Benzyl-N,N-dimethyl-1- phenylmethanaminium bromide

CAS: 16536-62-2
Formula: C₁₆H₂₀BrN
MW: 306.24 g/mol

VQ-042466

Reference Standard

N-Benzylethylenediamine chemical structure

N-Benzylethylenediamine

CAS: 4152-09-4
Formula: C₉H₁₄N₂
MW: 150.22 g/mol

VQ-033103

Reference Standard

N-Benzylheptadecanamide chemical structure

N-Benzylheptadecanamide

CAS: 883715-19-3
Formula: C₂₄H₄₁NO
MW: 359.6 g/mol

VQ-038235

Reference Standard

N-Benzylidenebenzylamine chemical structure

N-Benzylidenebenzylamine

CAS: 780-25-6
Formula: C₁₄H₁₃N
MW: 195.26 g/mol

VQ-027276

Reference Standard

N-Benzyloxycarbonyl L-Threonine Amide chemical structure

N-Benzyloxycarbonyl L-Threonine Amide

CAS: 49705-98-8
Formula: C₁₂H₁₆N₂O₄
MW: 252.27 g/mol

VQ-040013

Reference Standard

N-Benzyloxycarbonyl-6-Aminohexanoic Acid chemical structure

N-Benzyloxycarbonyl-6-Aminohexanoic Acid

CAS: 1947-00-8
Formula: C₁₄H₁₉NO₄
MW: 265.3 g/mol

VQ-027079

Reference Standard

N-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester chemical structure

N-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester

CAS: 132249-34-4
Formula: C₁₃H₁₇NO₇S
MW: 331.34 g/mol

VQ-032436

Reference Standard

N-Benzylprop-2-yn-1-amine chemical structure

N-Benzylprop-2-yn-1-amine

CAS: 1197-51-9
Formula: C₁₀H₁₁N
MW: 145.2 g/mol

VQ-041842

Reference Standard

N-Boc Desbutyrate Elagolix chemical structure

N-Boc Desbutyrate Elagolix

CAS: 830346-51-5
Formula: C₃₃H₃₂F₅N₃O₅
MW: 645.6 g/mol

VQ-044576

Reference Standard

N-Boc O-triflate Saxagliptin chemical structure

N-Boc O-triflate Saxagliptin

CAS: 1194836-75-3
Formula: C₂₅H₃₂F₃N₃O₅
MW: 511.5 g/mol

VQ-033786

Reference Standard

N-Boc Ozenoxacin Impurity

N-Boc Ozenoxacin Impurity

CAS: 2489805-53-8
Formula: C₂₆H₂₉N₃O₅
MW: 463.53 g/mol

VQ-041294

Reference Standard

N-Boc-1H-pyrazole-1-carboxamidine

N-Boc-1H-pyrazole-1-carboxamidine

CAS: 152120-61-1
Formula: C₉H₁₄N₄O₂
MW: 210.23 g/mol

VQ-040002

Reference Standard

N-Boc-3-iodo-L-alanine chemical structure

N-Boc-3-iodo-L-alanine

CAS: 773128-24-8
Formula: C₈H₁₄INO₄
MW: 315.11 g/mol

VQ-030447

Reference Standard

N-Boc-4-Oxo-L-proline chemical structure

N-Boc-4-Oxo-L-proline

CAS: 84348-37-8
Formula: C₁₀H₁₅NO₅
MW: 229.23 g/mol

VQ-034096

Reference Standard

N-Boc-Aliskiren chemical structure

N-Boc-Aliskiren

CAS: 173338-07-3
Formula: C₃₅H₆₁N₃O₈
MW: 651.9 g/mol

VQ-043484

Reference Standard

N-Boc-L-homophenylalanine chemical structure

N-Boc-L-homophenylalanine

CAS: 100564-78-1
Formula: C₁₅H₂₁NO₄
MW: 279.33 g/mol

VQ-043658

Reference Standard

N-Boc-Sitagliptin chemical structure

N-Boc-Sitagliptin

CAS: 486460-23-5
Formula: C₂₁H₂₃F₆N₅O₃
MW: 507.4 g/mol

VQ-023762

Reference Standard

N-Boc-sulfamoyl Chloride chemical structure

N-Boc-sulfamoyl Chloride

CAS: 147000-89-3
Formula: C₅H₁₀ClNO₄S
MW: 215.66 g/mol

VQ-031707

Reference Standard

N-Butyl Nor Scopolamine Hydrochloride chemical structure

N-Butyl Nor Scopolamine Hydrochloride

CAS: 22235-98-9
Formula: C₂₀H₂₈ClNO₄
MW: 381.9 g/mol

VQ-033788

Reference Standard

N-Butyl Scopine Bromide chemical structure

N-Butyl Scopine Bromide

CAS: 2030294-83-6
Formula: C₁₂H₂₂BrNO₂
MW: 292.21 g/mol

VQ-026091

Reference Standard

N-Butyl-2-Piperidine Carboxylic Acid chemical structure

N-Butyl-2-Piperidine Carboxylic Acid

CAS: 856838-98-7
Formula: C₁₀H₁₉NO₂
MW: 185.26 g/mol

VQ-024684

Reference Standard

N-Carbamoyl Amoxapine chemical structure

N-Carbamoyl Amoxapine

CAS: 2835304-63-5
Formula: C₃₀H₂₄Cl₂N₄O₃
MW: 559.4 g/mol

VQ-024267

Reference Standard

N-Carbamoyl Degarelix chemical structure

N-Carbamoyl Degarelix

CAS: 2648486-38-6
Formula: C₈₃H₁₀₄ClN₁₉O₁₇
MW: 1675.3 g/mol

VQ-044967

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