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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

Hydroxy Urea-13C,15N2 chemical structure

Hydroxy Urea-13C,15N2

CAS: 1246814-92-5
Formula: CH₄N₂O₂
MW: 79.03 g/mol

VQ-041166

Reference Standard

Hydroxy Vardenafil chemical structure

Hydroxy Vardenafil

CAS: 224785-98-2
Formula: C₂₃H₃₂N₆O₅S
MW: 504.6 g/mol

VQ-028948

Reference Standard

Hydroxy Ziprasidone chemical structure

Hydroxy Ziprasidone

CAS: 884305-08-2
Formula: C₂₁H₂₁ClN₄O₂S
MW: 428.9 g/mol

VQ-034743

Reference Standard

Hydroxyacetone chemical structure

CAS: 116-09-6
Formula: C₃H₆O₂
MW: 74.08 g/mol

VQ-035609

Reference Standard

Hydroxyanigorufone chemical structure

Hydroxyanigorufone

CAS: 56252-02-9
Formula: C₁₉H₁₂O₃
MW: 288.3 g/mol

VQ-040025

Reference Standard

Hydroxyatenolol chemical structure

Hydroxyatenolol

CAS: 68373-10-4
Formula: C₁₄H₂₂N₂O₄
MW: 282.34 g/mol

VQ-021648

Reference Standard

Hydroxybenzotriazole Hydrate chemical structure

Hydroxybenzotriazole Hydrate

CAS: 80029-43-2
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

VQ-032233

Reference Standard

Hydroxybupropion chemical structure

Hydroxybupropion

CAS: 92264-81-8
Formula: C₁₃H₁₈ClNO₂
MW: 255.74 g/mol

VQ-021920

Reference Standard

Hydroxybupropion Hydrochloride

Hydroxybupropion Hydrochloride

CAS: 78800-56-3
Formula: C₁₃H₁₈ClNO₂: HCl

VQ-044777

Reference Standard

Hydroxychloroquine chemical structure

Hydroxychloroquine

CAS: 118-42-3
Formula: C₁₈H₂₆ClN₃O
MW: 335.9 g/mol

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Reference Standard

Hydroxychloroquine (Hydrochloride) - Impurity G chemical structure

Hydroxychloroquine (Hydrochloride) - Impurity G

CAS: 1198-39-6
Formula: C₉H₆Cl₃N
MW: 234.5 g/mol

VQ-005049

Reference Standard

Hydroxychloroquine 3-Bromo Impurity chemical structure

Hydroxychloroquine 3-Bromo Impurity

CAS: 2054859-08-2
Formula: C₁₈H₂₅BrClN₃O
MW: 414.8 g/mol

VQ-031104

Reference Standard

Hydroxychloroquine Acid chemical structure

Hydroxychloroquine Acid

CAS: 645406-24-2
Formula: C₁₈H₂₄ClN₃O₃
MW: 365.9 g/mol

VQ-031105

Reference Standard

Hydroxychloroquine Dimer chemical structure

Hydroxychloroquine Dimer

CAS: 2732209-42-4
Formula: C₃₆H₅₀Cl₂N₆O
MW: 653.7 g/mol

VQ-037603

Reference Standard

Hydroxychloroquine EP Impurity A chemical structure

Hydroxychloroquine EP Impurity A

CAS: 1449223-88-4
Formula: C₁₈H₂₆ClN₃O₂
MW: 351.9 g/mol

VQ-021236

Reference Standard

Hydroxychloroquine EP Impurity B chemical structure

Hydroxychloroquine EP Impurity B

CAS: 103152-84-7
Formula: C₁₈H₂₆ClN₃O₄S
MW: 415.9 g/mol

In stock

Reference Standard

Hydroxychloroquine EP Impurity C chemical structure

Hydroxychloroquine EP Impurity C

CAS: 4298-15-1
Formula: C₁₆H₂₂ClN₃O
MW: 307.82 g/mol

In stock

Reference Standard

Hydroxychloroquine EP Impurity C Hydrochloride chemical structure

Hydroxychloroquine EP Impurity C Hydrochloride

CAS: 159358-29-9
Formula: C₁₆H₂₃Cl₂N₃O
MW: 344.3 g/mol

VQ-048592

Reference Standard

Hydroxychloroquine EP Impurity D chemical structure

Hydroxychloroquine EP Impurity D

CAS: 1476-52-4
Formula: C₁₆H₂₂ClN₃
MW: 291.82 g/mol

In stock

Reference Standard

Hydroxychloroquine EP Impurity E chemical structure

Hydroxychloroquine EP Impurity E

CAS: 10500-64-8
Formula: C₁₄H₁₇ClN₂O
MW: 264.75 g/mol

In stock

Reference Standard

Hydroxychloroquine EP Impurity G chemical structure

Hydroxychloroquine EP Impurity G

CAS: 86-98-6
Formula: C₉H₅Cl₂N
MW: 198.05 g/mol

In stock

Reference Standard

Hydroxychloroquine Impurity 10 (Freebase) chemical structure

Hydroxychloroquine Impurity 10 (Freebase)

CAS: 860544-46-3
Formula: C₇H₁₈N₂
MW: 130.23 g/mol

VQ-005050

Reference Standard

Hydroxychloroquine Impurity 10 (Trifluoro Acetate Salt)

Hydroxychloroquine Impurity 10 (Trifluoro Acetate Salt)

Formula: C₇H₁₈N₂.C₂HF₃O₂
MW: 244.25 g/mol

In stock

Reference Standard

Hydroxychloroquine Impurity 15

Hydroxychloroquine Impurity 15

CAS: 91911-59-0
Formula: C₁₃H₁₅ClN₂O
MW: 250.72 g/mol

VQ-048591

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