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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

Vortioxetine Impurity 16 chemical structure

Vortioxetine Impurity 16

CAS: 16704-47-5
Formula: C₁₄H₁₄S
MW: 214.33 g/mol

VQ-034693

Reference Standard

Vortioxetine Impurity 4 chemical structure

Vortioxetine Impurity 4

CAS: 1293489-77-6
Formula: C₁₈H₂₂N₂S
MW: 298.4 g/mol

VQ-035504

Reference Standard

Vortioxetine Sulfone chemical structure

Vortioxetine Sulfone

CAS: 1639263-80-1
Formula: C₁₈H₂₂N₂O₂S
MW: 330.4 g/mol

VQ-028752

Reference Standard

Vortioxetine Sulfoxide chemical structure

Vortioxetine Sulfoxide

CAS: 1429908-35-9
Formula: C₁₈H₂₂N₂OS
MW: 314.4 g/mol

VQ-028761

Reference Standard

Vortioxetine Sulfoxide Hydrobromide chemical structure

Vortioxetine Sulfoxide Hydrobromide

CAS: 2228086-73-3
Formula: C₁₈H₂₃BrN₂OS
MW: 395.4 g/mol

VQ-034688

Reference Standard

Vortioxetine Sulfoxide Hydrochloride chemical structure

Vortioxetine Sulfoxide Hydrochloride

CAS: 2236051-10-6
Formula: C₁₈H₂₃ClN₂OS
MW: 350.9 g/mol

VQ-042953

Reference Standard

Vortioxetine-d8 chemical structure

Vortioxetine-d8

CAS: 2140316-62-5
Formula: C₁₈H₂₂N₂S
MW: 306.5 g/mol

VQ-042954

Reference Standard

Vosoritide

CAS: 1480724-61-5
Formula: C₁₇₆H₂₉₀N₅₆O₅₁S₃
MW: 4103 g/mol

VQ-034706

Reference Standard

Voxelotor Impurity 1 chemical structure

Voxelotor Impurity 1

CAS: 1282518-60-8
Formula: C₁₂H₂₁BN₂O₂
MW: 236.12 g/mol

VQ-042955

Reference Standard

Voxelotor Impurity 2 chemical structure

Voxelotor Impurity 2

CAS: 84290-49-3
Formula: C₉H₁₀O₄
MW: 182.17 g/mol

VQ-042956

Reference Standard

Voxilaprevir chemical structure

CAS: 1535212-07-7
Formula: C₄₀H₅₂F₄N₆O₉S
MW: 868.9 g/mol

VQ-042957

Reference Standard

Walborskys Reagent chemical structure

Walborskys Reagent

CAS: 14542-93-9
Formula: C₉H₁₇N
MW: 139.24 g/mol

VQ-007857

Reference Standard

Warfarin chemical structure

CAS: 81-81-2
Formula: C₁₉H₁₆O₄
MW: 308.3 g/mol

VQ-028766

Reference Standard

Warfarin Alcohol (Mixture of Diastereomers) chemical structure

Warfarin Alcohol (Mixture of Diastereomers)

CAS: 28392-96-3
Formula: C₁₉H₁₈O₄
MW: 310.3 g/mol

VQ-028765

Reference Standard

Warfarin Sodium chemical structure

Warfarin Sodium

CAS: 129-06-6
Formula: C₁₉H₁₅NaO₄
MW: 330.3 g/mol

VQ-034707

Reference Standard

Warfarin Sodium - Impurity A chemical structure

Warfarin Sodium - Impurity A

CAS: 15156-56-6
Formula: C₁₈H₁₆O₂
MW: 264.3 g/mol

VQ-024035

Reference Standard

Warfarin Sodium Clathrate chemical structure

Warfarin Sodium Clathrate

CAS: 67430-45-9
Formula: C₁₉H₁₅NaO₄
MW: 330.3 g/mol

VQ-042958

Reference Standard

Warfarin-d5 chemical structure

CAS: 75472-93-4
Formula: C₁₉H₁₆O₄
MW: 313.4 g/mol

VQ-034708

Reference Standard

Withaferin A chemical structure

CAS: 5119-48-2
Formula: C₂₈H₃₈O₆
MW: 470.6 g/mol

VQ-042966

Reference Standard

Withanolide A chemical structure

CAS: 32911-62-9
Formula: C₂₈H₃₈O₆
MW: 470.6 g/mol

VQ-042967

Reference Standard

Withanolide B chemical structure

CAS: 56973-41-2
Formula: C₂₈H₃₈O₅
MW: 454.6 g/mol

VQ-042969

Reference Standard

Withanone chemical structure

CAS: 27570-38-3
Formula: C₂₈H₃₈O₆
MW: 470.6 g/mol

VQ-040759

Reference Standard

Withanoside IV chemical structure

CAS: 362472-81-9
Formula: C₄₀H₆₂O₁₅
MW: 782.9 g/mol

VQ-042968

Reference Standard

Withanoside V chemical structure

CAS: 256520-90-8
Formula: C₄₀H₆₂O₁₄
MW: 766.9 g/mol

VQ-042970

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