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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

Imiquimod chemical structure

CAS: 99011-02-6
Formula: C₁₄H₁₆N₄
MW: 240.3 g/mol

VQ-026152

Reference Standard

Imiquimod impurity chemical structure

Imiquimod impurity

CAS: 415726-68-0
Formula: C₂₁H₂₂N₄
MW: 330.4 g/mol

VQ-048669

Reference Standard

Imiquimod USP Related Compound B chemical structure

Imiquimod USP Related Compound B

CAS: 99010-63-6
Formula: C₁₄H₁₅N₃O
MW: 241.29 g/mol

VQ-022841

Reference Standard

Imiquimod USP Related Compound C chemical structure

Imiquimod USP Related Compound C

CAS: 99010-64-7
Formula: C₁₄H₁₄ClN₃
MW: 259.73 g/mol

VQ-026154

Reference Standard

Imrecoxib chemical structure

CAS: 395683-14-4
Formula: C₂₁H₂₃NO₃S
MW: 369.5 g/mol

VQ-048670

Reference Standard

Inavolisib chemical structure

CAS: 2060571-02-8
Formula: C₁₈H₁₉F₂N₅O₄
MW: 407.4 g/mol

VQ-031186

Reference Standard

Indacaterol chemical structure

CAS: 312753-06-3
Formula: C₂₄H₂₈N₂O₃
MW: 392.5 g/mol

VQ-031187

Reference Standard

Indacaterol acetate chemical structure

Indacaterol acetate

CAS: 1000160-96-2
Formula: C₂₆H₃₂N₂O₅
MW: 452.5 g/mol

VQ-031191

Reference Standard

Indacaterol formate Salt

Indacaterol formate Salt

CAS: 1000160-93-9
Formula: C₂₅H₃₀N₂O₅
MW: 438.52 g/mol

VQ-037691

Reference Standard

Indacaterol Impurity 11 chemical structure

Indacaterol Impurity 11

CAS: 2975-41-9
Formula: C₉H₁₁N
MW: 133.19 g/mol

VQ-048673

Reference Standard

Indacaterol Impurity 13 chemical structure

Indacaterol Impurity 13

CAS: 312753-70-1
Formula: C₁₃H₁₉N
MW: 189.3 g/mol

VQ-048674

Reference Standard

Indacaterol Impurity B chemical structure

Indacaterol Impurity B

CAS: 1207760-24-4
Formula: C₄₉H₄₉N₃O₆
MW: 775.9 g/mol

VQ-031190

Reference Standard

Indacaterol Maleate chemical structure

Indacaterol Maleate

CAS: 753498-25-8
Formula: C₂₈H₃₂N₂O₇
MW: 508.6 g/mol

VQ-026156

Reference Standard

Indacaterol metabolite P26.9 chemical structure

Indacaterol metabolite P26.9

CAS: 1446354-19-3
Formula: C₂₄H₂₈N₂O₄
MW: 408.5 g/mol

VQ-026162

Reference Standard

Indacaterol-8-O-glucuronide chemical structure

Indacaterol-8-O-glucuronide

CAS: 1446354-20-6
Formula: C₃₀H₃₆N₂O₉
MW: 568.6 g/mol

VQ-037694

Reference Standard

Indacaterol-d3 chemical structure

CAS: 2699828-16-3
Formula: C₂₄H₂₈N₂O₃
MW: 395.5 g/mol

VQ-037695

Reference Standard

Indapamide chemical structure

CAS: 26807-65-8
Formula: C₁₆H₁₆ClN₃O₃S
MW: 365.8 g/mol

VQ-022844

Reference Standard

Indapamide EP Impurity A chemical structure

Indapamide EP Impurity A

CAS: 85440-79-5
Formula: C₉H₁₀N₂O
MW: 162.19 g/mol

VQ-021239

Reference Standard

Indapamide EP Impurity B chemical structure

Indapamide EP Impurity B

CAS: 63968-75-2
Formula: C₁₆H₁₄ClN₃O₃S
MW: 363.8 g/mol

VQ-021238

Reference Standard

Indapamide EP Impurity C chemical structure

Indapamide EP Impurity C

CAS: 77083-51-3
Formula: C₉H₁₂N₂
MW: 148.2 g/mol

VQ-037696

Reference Standard

Indapamide EP Impurity C (Freebase) chemical structure

Indapamide EP Impurity C (Freebase)

CAS: 31529-46-1
Formula: C₉H₁₂N₂
MW: 148.2 g/mol

VQ-006436

Reference Standard

Indapamide EP Impurity C (HCl salt) chemical structure

Indapamide EP Impurity C (HCl salt)

CAS: 31529-47-2
Formula: C₉H₁₃ClN₂
MW: 184.66 g/mol

VQ-028935

Reference Standard

Indapamide EP Impurity C (Hydrochloride Salt) chemical structure

Indapamide EP Impurity C (Hydrochloride Salt)

CAS: 102789-79-7
Formula: C₉H₁₃ClN₂
MW: 184.66 g/mol

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Reference Standard

Indapamide EP Impurity C (Mesylate) chemical structure

Indapamide EP Impurity C (Mesylate)

CAS: 85392-00-3
Formula: C₁₀H₁₆N₂O₃S
MW: 244.31 g/mol

VQ-037698

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