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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

6-Desfluoro Rufinamide chemical structure

6-Desfluoro Rufinamide

CAS: 106308-41-2
Formula: C₁₀H₉FN₄O
MW: 220.2 g/mol

VQ-033699

Reference Standard

6-Desfluoro-6-hydroxy Risperidone chemical structure

6-Desfluoro-6-hydroxy Risperidone

CAS: 106266-11-9
Formula: C₂₃H₂₈N₄O₃
MW: 408.5 g/mol

VQ-043743

Reference Standard

6-epi-Obeticholic Acid chemical structure

6-epi-Obeticholic Acid

CAS: 915038-27-6
Formula: C₂₆H₄₄O₄
MW: 420.6 g/mol

VQ-023308

Reference Standard

6-Epidoxycycline chemical structure

6-Epidoxycycline

CAS: 3219-99-6
Formula: C₂₂H₂₄N₂O₈
MW: 444.4 g/mol

VQ-022443

Reference Standard

6-Epidoxycycline hydrochloride chemical structure

6-Epidoxycycline hydrochloride

CAS: 41411-66-9
Formula: C₂₂H₂₅ClN₂O₈
MW: 480.9 g/mol

VQ-030310

Reference Standard

6-Ethylpyrimidin-4(3H)-one chemical structure

6-Ethylpyrimidin-4(3H)-one

CAS: 124703-78-2
Formula: C₆H₈N₂O
MW: 124.14 g/mol

VQ-036830

Reference Standard

6-Ethynyl-4,4-dimethyl-thiochroman chemical structure

6-Ethynyl-4,4-dimethyl-thiochroman

CAS: 118292-06-1
Formula: C₁₃H₁₄S
MW: 202.32 g/mol

VQ-028215

Reference Standard

6-Fluoro-2-(oxiran-2-yl)chroman chemical structure

6-Fluoro-2-(oxiran-2-yl)chroman

CAS: 99199-90-3
Formula: C₁₁H₁₁FO₂
MW: 194.2 g/mol

VQ-032074

Reference Standard

6-Fluoro-2-methylquinoline chemical structure

6-Fluoro-2-methylquinoline

CAS: 1128-61-6
Formula: C₁₀H₈FN
MW: 161.18 g/mol

VQ-035111

Reference Standard

6-Fluoro-3-(1-hydroxy-4-piperidyl)-1,2-benzoxazole chemical structure

6-Fluoro-3-(1-hydroxy-4-piperidyl)-1,2-benzoxazole

CAS: 2985481-41-0
Formula: C₁₂H₁₃FN₂O₂
MW: 236.24 g/mol

VQ-045090

Reference Standard

6-Fluoro-3-hydroxy-2-pyridinecarboxylic acid chemical structure

6-Fluoro-3-hydroxy-2-pyridinecarboxylic acid

CAS: 1211592-06-1
Formula: C₆H₄FNO₃
MW: 157.1 g/mol

VQ-040138

Reference Standard

6-Fluoro-3-hydroxy-2-pyridinemethanol chemical structure

6-Fluoro-3-hydroxy-2-pyridinemethanol

CAS: 1806576-89-5
Formula: C₆H₆FNO₂
MW: 143.12 g/mol

VQ-040137

Reference Standard

6-Fluoro-3-hydroxypyrazine-2-carbonitrile Dibutylamine Salt chemical structure

6-Fluoro-3-hydroxypyrazine-2-carbonitrile Dibutylamine Salt

CAS: 1137606-76-8
Formula: C₅H₂FN₃O
MW: 139.09 g/mol

VQ-044455

Reference Standard

6-Fluoro-3-hydroxypyrazine-2-carboxylic acid chemical structure

6-Fluoro-3-hydroxypyrazine-2-carboxylic acid

CAS: 1079990-21-8
Formula: C₅H₃FN₂O₃
MW: 158.09 g/mol

VQ-030680

Reference Standard

6-Fluoro-3-oxo-3,4-dihydropyrazine-2-carbonitrile chemical structure

6-Fluoro-3-oxo-3,4-dihydropyrazine-2-carbonitrile

CAS: 356783-31-8
Formula: C₅H₂FN₃O
MW: 139.09 g/mol

VQ-030681

Reference Standard

6-Fluorochromane-2-carboxylic acid chemical structure

6-Fluorochromane-2-carboxylic acid

CAS: 99199-60-7
Formula: C₁₀H₉FO₃
MW: 196.17 g/mol

VQ-032084

Reference Standard

6-Fluoropyrazine-2-carbonitrile chemical structure

6-Fluoropyrazine-2-carbonitrile

CAS: 356783-46-5
Formula: C₅H₂FN₃
MW: 123.09 g/mol

VQ-030682

Reference Standard

6-Formylpterin chemical structure

CAS: 712-30-1
Formula: C₇H₅N₅O₂
MW: 191.15 g/mol

VQ-025899

Reference Standard

6-Hydroxy Alosetron chemical structure

6-Hydroxy Alosetron

CAS: 128486-89-5
Formula: C₁₇H₁₈N₄O₂
MW: 310.35 g/mol

VQ-028805

Reference Standard

6-Hydroxy Benzbromarone chemical structure

6-Hydroxy Benzbromarone

CAS: 152831-00-0
Formula: C₁₇H₁₂Br₂O₄
MW: 440.1 g/mol

VQ-029388

Reference Standard

6-Hydroxy Betamethasone chemical structure

6-Hydroxy Betamethasone

CAS: 24703-00-2
Formula: C₂₂H₂₉FO₆
MW: 408.5 g/mol

VQ-047570

Reference Standard

6-Hydroxy Bexarotene chemical structure

6-Hydroxy Bexarotene

CAS: 368451-07-4
Formula: C₂₄H₂₈O₃
MW: 364.5 g/mol

VQ-029421

Reference Standard

6-Hydroxy Bromantane chemical structure

6-Hydroxy Bromantane

CAS: 1007310-57-7
Formula: C₁₆H₂₀BrNO
MW: 322.24 g/mol

VQ-047634

Reference Standard

6-Hydroxy Buspirone chemical structure

6-Hydroxy Buspirone

CAS: 125481-61-0
Formula: C₂₁H₃₁N₅O₃
MW: 401.5 g/mol

VQ-021927

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