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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

Iopamidol EP Impurity E chemical structure

Iopamidol EP Impurity E

CAS: 60166-92-9
Formula: C₁₉H₂₄I₃N₃O₉
MW: 819.1 g/mol

VQ-026185

Reference Standard

Iopamidol EP Impurity F chemical structure

Iopamidol EP Impurity F

CAS: 1869069-71-5
Formula: C₁₆H₂₀I₃N₃O₆
MW: 731.06 g/mol

VQ-026187

Reference Standard

Iopamidol EP Impurity G chemical structure

Iopamidol EP Impurity G

CAS: 1869069-72-6
Formula: C₁₇H₂₂I₃N₃O₈
MW: 777.1 g/mol

VQ-026188

Reference Standard

Iopamidol EP Impurity H chemical structure

Iopamidol EP Impurity H

CAS: 2996862-55-4
Formula: C₁₇H₂₂ClI₂N₃O₈
MW: 685.6 g/mol

VQ-037717

Reference Standard

Iopamidol EP Impurity J chemical structure

Iopamidol EP Impurity J

CAS: 77868-44-1
Formula: C₁₆H₂₀I₃N₃O₇
MW: 747.06 g/mol

VQ-031223

Reference Standard

Iopamidol EP Impurity K chemical structure

Iopamidol EP Impurity K

CAS: 1788899-70-6
Formula: C₁₇H₂₃I₂N₃O₈
MW: 651.2 g/mol

VQ-026189

Reference Standard

Iopamidol-D3 chemical structure

CAS: 1217831-76-9
Formula: C₁₇H₂₂I₃N₃O₈
MW: 780.1 g/mol

VQ-037719

Reference Standard

Iopromide chemical structure

CAS: 73334-07-3
Formula: C₁₈H₂₄I₃N₃O₈
MW: 791.1 g/mol

VQ-026190

Reference Standard

Iopromide EP Impurity A chemical structure

Iopromide EP Impurity A

CAS: 154361-51-0
Formula: C₁₅H₂₀I₃N₃O₆
MW: 719.05 g/mol

VQ-026191

Reference Standard

Iopromide EP Impurity B chemical structure

Iopromide EP Impurity B

CAS: 76350-28-2
Formula: C₁₇H₂₂I₃N₃O₇
MW: 761.1 g/mol

VQ-026192

Reference Standard

Iopromide EP Impurity C chemical structure

Iopromide EP Impurity C

CAS: 154361-52-1
Formula: C₁₇H₂₂I₃N₃O₈
MW: 777.1 g/mol

VQ-026193

Reference Standard

Iopromide EP Impurity D chemical structure

Iopromide EP Impurity D

CAS: 154361-55-4
Formula: C₃₆H₄₆I₆N₆O₁₅
MW: 1564.2 g/mol

VQ-026194

Reference Standard

Iopromide EP Impurity E chemical structure

Iopromide EP Impurity E

CAS: 154397-78-1
Formula: C₃₂H₃₇I₆N₅O₁₄
MW: 1477.1 g/mol

VQ-026195

Reference Standard

Iopromide EP Impurity F chemical structure

Iopromide EP Impurity F

CAS: 154361-54-3
Formula: C₂₁H₂₈I₃N₃O₉
MW: 847.2 g/mol

VQ-026196

Reference Standard

Iopromide EP Impurity G chemical structure

Iopromide EP Impurity G

CAS: 154361-53-2
Formula: C₁₈H₂₃ClI₃N₃O₇
MW: 809.6 g/mol

VQ-026197

Reference Standard

Iopromide EP Impurity H chemical structure

Iopromide EP Impurity H

CAS: 185459-57-8
Formula: C₁₄H₁₅I₃N₂O₇
MW: 703.99 g/mol

VQ-031224

Reference Standard

Ioversol chemical structure

CAS: 87771-40-2
Formula: C₁₈H₂₄I₃N₃O₉
MW: 807.1 g/mol

VQ-026198

Reference Standard

Ioxaglic Acid chemical structure

CAS: 59017-64-0
Formula: C₂₄H₂₁I₆N₅O₈
MW: 1268.9 g/mol

VQ-043546

Reference Standard

Ioxaglic Acid EP Impurity A (Free Base) chemical structure

Ioxaglic Acid EP Impurity A (Free Base)

CAS: 22871-58-5
Formula: C₁₀H₉I₃N₂O₄
MW: 601.9 g/mol

VQ-043547

Reference Standard

Ioxitalamic Acid chemical structure

Ioxitalamic Acid

CAS: 28179-44-4
Formula: C₁₂H₁₁I₃N₂O₅
MW: 643.94 g/mol

VQ-037721

Reference Standard

Ipamorelin chemical structure

CAS: 170851-70-4
Formula: C₃₈H₄₉N₉O₅
MW: 711.9 g/mol

VQ-031229

Reference Standard

Ipidacrine chemical structure

CAS: 62732-44-9
Formula: C₁₂H₁₆N₂
MW: 188.27 g/mol

VQ-048696

Reference Standard

Ipidacrine Hydrochloride Hydrate chemical structure

Ipidacrine Hydrochloride Hydrate

CAS: 118499-70-0
Formula: C₁₂H₁₉ClN₂O
MW: 242.74 g/mol

VQ-026199

Reference Standard

Ipragliflozin chemical structure

CAS: 761423-87-4
Formula: C₂₁H₂₁FO₅S
MW: 404.5 g/mol

VQ-026200

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