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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

Indomethacin-d4 chemical structure

Indomethacin-d4

CAS: 87377-08-0
Formula: C₁₉H₁₆ClNO₄
MW: 361.8 g/mol

VQ-037702

Reference Standard

Indomethacin-α-monoglyceride chemical structure

Indomethacin-α-monoglyceride

CAS: 71848-87-8
Formula: C₂₂H₂₂ClNO₆
MW: 431.9 g/mol

VQ-022854

Reference Standard

Indoramin EP Impurity A chemical structure

Indoramin EP Impurity A

CAS: 3389-21-7
Formula: C₁₀H₁₀BrN
MW: 224.1 g/mol

VQ-031208

Reference Standard

Indoramin EP Impurity C chemical structure

Indoramin EP Impurity C

CAS: 33953-37-6
Formula: C₁₂H₁₆N₂O
MW: 204.27 g/mol

VQ-037705

Reference Standard

Indoramin Hydrochloride chemical structure

Indoramin Hydrochloride

CAS: 38821-52-2
Formula: C₂₂H₂₆ClN₃O
MW: 383.9 g/mol

VQ-037703

Reference Standard

Indoramin Impurity B chemical structure

Indoramin Impurity B

CAS: 971-34-6
Formula: C₁₉H₂₂N₂O
MW: 294.4 g/mol

VQ-037704

Reference Standard

Indoxyl Sulfate Potassium Salt D4 chemical structure

Indoxyl Sulfate Potassium Salt D4

CAS: 1346601-03-3
Formula: C₈H₆KNO₄S
MW: 251.3 g/mol

VQ-052428

Reference Standard

Infigratinib chemical structure

CAS: 872511-34-7
Formula: C₂₆H₃₁Cl₂N₇O₃
MW: 560.5 g/mol

VQ-037709

Reference Standard

Infliximab

CAS: 170277-31-3

VQ-048688

Reference Standard

Ingavirin chemical structure

CAS: 219694-63-0
Formula: C₁₀H₁₅N₃O₃
MW: 225.24 g/mol

VQ-031210

Reference Standard

Ingenol chemical structure

CAS: 30220-46-3
Formula: C₂₀H₂₈O₅
MW: 348.4 g/mol

VQ-048689

Reference Standard

Ingenol Mebutate chemical structure

Ingenol Mebutate

CAS: 75567-37-2
Formula: C₂₅H₃₄O₆
MW: 430.5 g/mol

VQ-037710

Reference Standard

Inosine 2',3',5'-tribenzoate chemical structure

Inosine 2',3',5'-tribenzoate

CAS: 6741-88-4
Formula: C₃₁H₂₄N₄O₈
MW: 580.5 g/mol

VQ-039892

Reference Standard

Inositol nicotinate chemical structure

Inositol nicotinate

CAS: 6556-11-2
Formula: C₄₂H₃₀N₆O₁₂
MW: 810.7 g/mol

VQ-037712

Reference Standard

Intermedine chemical structure

CAS: 10285-06-0
Formula: C₁₅H₂₅NO₅
MW: 299.36 g/mol

VQ-031212

Reference Standard

Intermedine N-Oxide chemical structure

Intermedine N-Oxide

CAS: 95462-14-9
Formula: C₁₅H₂₅NO₆
MW: 315.36 g/mol

VQ-031213

Reference Standard

Iobitridol chemical structure

CAS: 136949-58-1
Formula: C₂₀H₂₈I₃N₃O₉
MW: 835.2 g/mol

VQ-037713

Reference Standard

Iodixanol chemical structure

CAS: 92339-11-2
Formula: C₃₅H₄₄I₆N₆O₁₅
MW: 1550.2 g/mol

VQ-026167

Reference Standard

Iodixanol Dimer Impurity

Iodixanol Dimer Impurity

CAS: 3048333-57-6
Formula: C₃₈H₅₀I₆N₆O₁₇
MW: 1624.26 g/mol

VQ-031214

Reference Standard

Iodixanol EP Impurity A (Free Base) chemical structure

Iodixanol EP Impurity A (Free Base)

CAS: 66108-95-0
Formula: C₁₉H₂₆I₃N₃O₉
MW: 821.1 g/mol

VQ-026172

Reference Standard

Iodixanol EP Impurity C chemical structure

Iodixanol EP Impurity C

CAS: 171897-74-8
Formula: C₃₃H₄₂I₆N₆O₁₄
MW: 1508.1 g/mol

VQ-026168

Reference Standard

Iodixanol EP Impurity E chemical structure

Iodixanol EP Impurity E

CAS: 255376-57-9
Formula: C₃₂H₃₈I₆N₆O₁₃
MW: 1476.1 g/mol

VQ-026169

Reference Standard

Iodixanol EP Impurity F chemical structure

Iodixanol EP Impurity F

CAS: 171897-73-7
Formula: C₃₃H₄₁I₅N₆O₁₄
MW: 1380.2 g/mol

VQ-026170

Reference Standard

Iodixanol EP Impurity G chemical structure

Iodixanol EP Impurity G

CAS: 171897-72-6
Formula: C₃₅H₄₃I₅N₆O₁₅
MW: 1422.3 g/mol

VQ-026171

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