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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.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

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 N,O-Didesmethylvenlafaxine chemical structure

N-Boc N,O-Didesmethylvenlafaxine

CAS: 1076199-24-0
Formula: C₁₉H₂₉NO₄
MW: 335.4 g/mol

VQ-043879

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-1-nitrosopiperidin-4-amine chemical structure

N-Boc-1-nitrosopiperidin-4-amine

CAS: 2396758-93-1
Formula: C₁₀H₁₉N₃O₃
MW: 229.28 g/mol

VQ-026482

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-N-Desethyl Sunitinib Intermediate

N-Boc-N-Desethyl Sunitinib Intermediate

Formula: C₁₆H₂₇N₃O₃
MW: 309.4 g/mol

In stock

Reference Standard

N-Boc-N-deshydroxyethyl Dasatinib chemical structure

N-Boc-N-deshydroxyethyl Dasatinib

CAS: 1159977-13-5
Formula: C₂₅H₃₀ClN₇O₃S
MW: 544.1 g/mol

VQ-025209

Reference Standard

N-Boc-N-Deshydroxyethyl Dasatinib-D8 chemical structure

N-Boc-N-Deshydroxyethyl Dasatinib-D8

CAS: 1263379-04-9
Formula: C₂₅H₃₀ClN₇O₃S
MW: 552.1 g/mol

VQ-043388

Reference Standard

N-Boc-N-nitro-L-arginine chemical structure

N-Boc-N-nitro-L-arginine

CAS: 2188-18-3
Formula: C₁₁H₂₁N₅O₆
MW: 319.31 g/mol

VQ-032601

Reference Standard

N-Boc-piperazine-d8 chemical structure

N-Boc-piperazine-d8

CAS: 1126621-86-0
Formula: C₉H₁₈N₂O₂
MW: 194.3 g/mol

VQ-039635

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-Boc-trans-4-hydroxy-D-proline chemical structure

N-Boc-trans-4-hydroxy-D-proline

CAS: 147266-92-0
Formula: C₁₀H₁₇NO₅
MW: 231.25 g/mol

VQ-049469

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

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