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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

3-Nitro-4-phenoxy-5-sulfobenzoic Acid chemical structure

3-Nitro-4-phenoxy-5-sulfobenzoic Acid

CAS: 751422-00-1
Formula: C₁₃H₉NO₈S
MW: 339.28 g/mol

VQ-047638

Reference Standard

3-Nitro-4-thiocyano aniline chemical structure

3-Nitro-4-thiocyano aniline

CAS: 23153-15-3
Formula: C₇H₅N₃O₂S
MW: 195.2 g/mol

VQ-024176

Reference Standard

3-Nitrobenzotrifluoride chemical structure

3-Nitrobenzotrifluoride

CAS: 98-46-4
Formula: C₇H₄F₃NO₂
MW: 191.11 g/mol

VQ-039173

Reference Standard

3-Nitrosooxazolidine chemical structure

3-Nitrosooxazolidine

CAS: 39884-52-1
Formula: C₃H₆N₂O₂
MW: 102.09 g/mol

VQ-006797

Reference Standard

3-Nonen-2-one, (3E) chemical structure

3-Nonen-2-one, (3E)

CAS: 18402-83-0
Formula: C₉H₁₆O
MW: 140.22 g/mol

VQ-040157

Reference Standard

3-O Demethyl Staurosporine chemical structure

3-O Demethyl Staurosporine

CAS: 161743-35-7
Formula: C₂₇H₂₄N₄O₃
MW: 452.5 g/mol

VQ-031894

Reference Standard

3-O-Acetyl Ezetimibe chemical structure

3-O-Acetyl Ezetimibe

CAS: 190448-46-5
Formula: C₂₆H₂₃F₂NO₄
MW: 451.5 g/mol

VQ-037182

Reference Standard

3-O-Acetyl Ezetimibe chemical structure

3-O-Acetyl Ezetimibe

CAS: 1044664-24-5
Formula: C₂₆H₂₃F₂NO₄
MW: 451.5 g/mol

VQ-037184

Reference Standard

3-O-Acetyl-11-keto-Beta-Boswellic acid chemical structure

3-O-Acetyl-11-keto-Beta-Boswellic acid

CAS: 67416-61-9
Formula: C₃₂H₄₈O₅
MW: 512.7 g/mol

VQ-027142

Reference Standard

3-O-Acetyl-alpha-boswellic acid chemical structure

3-O-Acetyl-alpha-boswellic acid

CAS: 89913-60-0
Formula: C₃₂H₅₀O₄
MW: 498.7 g/mol

VQ-027257

Reference Standard

3-O-Acetyl-beta-boswellic acid chemical structure

3-O-Acetyl-beta-boswellic acid

CAS: 5968-70-7
Formula: C₃₂H₅₀O₄
MW: 498.7 g/mol

VQ-027258

Reference Standard

3-O-Demethyl Ivermectin B1a chemical structure

3-O-Demethyl Ivermectin B1a

CAS: 431070-70-1
Formula: C₄₇H₇₂O₁₄
MW: 861.1 g/mol

VQ-037795

Reference Standard

3-O-Desmethyl Amlodipine chemical structure

3-O-Desmethyl Amlodipine

CAS: 113994-37-9
Formula: C₁₉H₂₃ClN₂O₅
MW: 394.8 g/mol

VQ-021561

Reference Standard

3-O-Ethyl-L-ascorbic Acid chemical structure

3-O-Ethyl-L-ascorbic Acid

CAS: 86404-04-8
Formula: C₈H₁₂O₆
MW: 204.18 g/mol

VQ-026378

Reference Standard

3-O-Methyl Carbidopa chemical structure

3-O-Methyl Carbidopa

CAS: 85933-19-3
Formula: C₁₁H₁₆N₂O₄
MW: 240.26 g/mol

VQ-024767

Reference Standard

3-O-Methyl Estradiol chemical structure

3-O-Methyl Estradiol

CAS: 1035-77-4
Formula: C₁₉H₂₆O₂
MW: 286.4 g/mol

VQ-025646

Reference Standard

3-O-Methyldopa-d3 chemical structure

3-O-Methyldopa-d3

CAS: 586954-09-8
Formula: C₁₀H₁₃NO₄
MW: 214.23 g/mol

VQ-041152

Reference Standard

3-O-Propyl Estrone chemical structure

3-O-Propyl Estrone

CAS: 1852-86-4
Formula: C₂₁H₂₈O₂
MW: 312.4 g/mol

VQ-037093

Reference Standard

3-Oxo-4-(2,4,5-trifluorophenyl)butanoic acid chemical structure

3-Oxo-4-(2,4,5-trifluorophenyl)butanoic acid

CAS: 1256815-03-8
Formula: C₁₀H₇F₃O₃
MW: 232.16 g/mol

VQ-033882

Reference Standard

3-Oxo-7alpha-hydroxy-5beta-cholanoic Acid chemical structure

3-Oxo-7alpha-hydroxy-5beta-cholanoic Acid

CAS: 4185-00-6
Formula: C₂₄H₃₈O₄
MW: 390.6 g/mol

VQ-032222

Reference Standard

3-Oxo-7α,12a-hydroxy-5-β-cholanoic Acid chemical structure

3-Oxo-7α,12a-hydroxy-5-β-cholanoic Acid

CAS: 2304-89-4
Formula: C₂₄H₃₈O₅
MW: 406.6 g/mol

VQ-029739

Reference Standard

3-Oxocyclobutanecarboxylic Acid Methyl Ester chemical structure

3-Oxocyclobutanecarboxylic Acid Methyl Ester

CAS: 695-95-4
Formula: C₆H₈O₃
MW: 128.13 g/mol

VQ-027167

Reference Standard

3-Phenoxybenzoic Acid chemical structure

3-Phenoxybenzoic Acid

CAS: 3739-38-6
Formula: C₁₃H₁₀O₃
MW: 214.22 g/mol

VQ-027132

Reference Standard

3-Phenoxybenzyl 2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropane-1-carboxylate chemical structure

3-Phenoxybenzyl 2,2-dimethyl-3-(2,2,2-trichloroethyl)cyclopropane-1-carboxylate

CAS: 65462-81-9
Formula: C₂₁H₂₁Cl₃O₃
MW: 427.7 g/mol

VQ-041426

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