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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

Ibuprofen Piconol chemical structure

Ibuprofen Piconol

CAS: 64622-45-3
Formula: C₁₉H₂₃NO₂
MW: 297.4 g/mol

VQ-048615

Reference Standard

Ibuprofen Poly(oxy-1,2-ethanediyl) Ester

Ibuprofen Poly(oxy-1,2-ethanediyl) Ester

CAS: 87553-98-8
Formula: (C₂H₄O)₉C₁₃H₁₈O₂
MW: 602.75 g/mol

VQ-043909

Reference Standard

Ibuprofen sodium chemical structure

Ibuprofen sodium

CAS: 31121-93-4
Formula: C₁₃H₁₇NaO₂
MW: 228.26 g/mol

VQ-007503

Reference Standard

Ibuprofen Sodium Dihydrate chemical structure

Ibuprofen Sodium Dihydrate

CAS: 527688-20-6
Formula: C₁₃H₂₁NaO₄
MW: 264.29 g/mol

VQ-037622

Reference Standard

Ibuprofen WS chemical structure

CAS: 15687-27-1
Formula: C₁₃H₁₈O₂
MW: 206.28 g/mol

In stock

Reference Standard

Ibuprofen-d3 chemical structure

CAS: 121662-14-4
Formula: C₁₃H₁₈O₂
MW: 209.3 g/mol

VQ-037639

Reference Standard

Ibutamoren chemical structure

CAS: 159634-47-6
Formula: C₂₇H₃₆N₄O₅S
MW: 528.7 g/mol

VQ-040651

Reference Standard

Ibutilide USP Related Compound A chemical structure

Ibutilide USP Related Compound A

CAS: 100632-58-4
Formula: C₂₀H₃₂N₂O₄S
MW: 396.5 g/mol

VQ-034984

Reference Standard

Ibutilide USP Related Compound B chemical structure

Ibutilide USP Related Compound B

CAS: 160087-98-9
Formula: C₂₀H₃₄N₂O₄S
MW: 398.6 g/mol

VQ-043523

Reference Standard

Icatibant Acetate chemical structure

Icatibant Acetate

CAS: 138614-30-9
Formula: C₆₁H₉₃N₁₉O₁₅S
MW: 1364.6 g/mol

VQ-031144

Reference Standard

Icomethasone chemical structure

CAS: 4647-20-5
Formula: C₂₂H₂₉ClO₅
MW: 408.9 g/mol

VQ-026767

Reference Standard

Icotinib D4 chemical structure

CAS: 1567366-82-8
Formula: C₂₂H₂₁N₃O₄
MW: 395.4 g/mol

VQ-048632

Reference Standard

Icotinib Hydrochloride chemical structure

Icotinib Hydrochloride

CAS: 1204313-51-8
Formula: C₂₂H₂₂ClN₃O₄
MW: 427.9 g/mol

VQ-037650

Reference Standard

Icotrokinra chemical structure

CAS: 2763602-16-8
Formula: C₉₀H₁₂₀N₂₀O₂₂S₂
MW: 1898.2 g/mol

VQ-048633

Reference Standard

Idarubicin chemical structure

CAS: 58957-92-9
Formula: C₂₆H₂₇NO₉
MW: 497.5 g/mol

VQ-037652

Reference Standard

Idarubicin Hydrochloride chemical structure

Idarubicin Hydrochloride

CAS: 57852-57-0
Formula: C₂₆H₂₈ClNO₉
MW: 534 g/mol

VQ-031151

Reference Standard

Idebenone chemical structure

CAS: 58186-27-9
Formula: C₁₉H₃₀O₅
MW: 338.4 g/mol

VQ-026129

Reference Standard

Idebenone D6 chemical structure

CAS: 1536479-81-8
Formula: C₁₉H₃₀O₅
MW: 344.5 g/mol

VQ-048635

Reference Standard

Idebenone Metabolite QS4

Idebenone Metabolite QS4

CAS: 58186-25-7
Formula: C₁₃H₁₈O₅
MW: 254.28 g/mol

VQ-044923

Reference Standard

Idebenone Metabolite QS6 chemical structure

Idebenone Metabolite QS6

CAS: 77712-34-6
Formula: C₁₅H₂₂O₅
MW: 282.33 g/mol

VQ-028965

Reference Standard

Idebenone Sulfate chemical structure

Idebenone Sulfate

CAS: 319906-76-8
Formula: C₁₉H₃₀O₈S
MW: 418.5 g/mol

VQ-031152

Reference Standard

Idelalisib chemical structure

CAS: 870281-82-6
Formula: C₂₂H₁₈FN₇O
MW: 415.4 g/mol

VQ-037654

Reference Standard

Idelalisib Enatiomeric Impurity

Idelalisib Enatiomeric Impurity

CAS: 2184933-01-3
Formula: C₂₂H₁₈FN₇O
MW: 415.43 g/mol

VQ-048636

Reference Standard

Ifosfamide chemical structure

CAS: 3778-73-2
Formula: C₇H₁₅Cl₂N₂O₂P
MW: 261.08 g/mol

VQ-022821

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