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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

Ethyl chemical structure

CAS: 180468-42-2
Formula: C₁₈H₁₉NO₂
MW: 281.3 g/mol

VQ-028076

Reference Standard

Ethyl chemical structure

CAS: 2520114-19-4
Formula: C₂₀H₂₄Cl₂N₄O₄
MW: 455.3 g/mol

VQ-029292

Reference Standard

Ethyl chemical structure

CAS: 2306254-34-0
Formula: C₁₅H₂₂N₂O₃
MW: 278.35 g/mol

VQ-029302

Reference Standard

Ethyl chemical structure

CAS: 22972-72-1
Formula: C₂₄H₃₄O₄
MW: 386.5 g/mol

VQ-029618

Reference Standard

Ethyl

CAS: 1932494-49-9
Formula: C₉H₁₇NO₃
MW: 187.24 g/mol

VQ-030380

Reference Standard

Ethyl chemical structure

CAS: 110548-02-2
Formula: C₁₅H₁₅F₄NO₄
MW: 349.28 g/mol

VQ-031527

Reference Standard

Ethyl chemical structure

CAS: 459789-98-1
Formula: C₂₈H₄₈O₄
MW: 448.7 g/mol

VQ-032223

Reference Standard

Ethyl chemical structure

CAS: 204254-96-6
Formula: C₁₄H₂₂O₄
MW: 254.32 g/mol

VQ-032296

Reference Standard

Ethyl chemical structure

CAS: 2692622-82-3
Formula: C₂₁H₃₂O₂
MW: 316.5 g/mol

VQ-032799

Reference Standard

Ethyl

CAS: 851528-83-1
Formula: C₂₃H₂₇F₃O₅S
MW: 472.5 g/mol

VQ-033795

Reference Standard

Ethyl chemical structure

CAS: 3009131-56-7
Formula: C₃₀H₂₈F₂N₆O₅S
MW: 622.6 g/mol

VQ-035365

Reference Standard

Ethyl

CAS: 87849-70-5
Formula: C₂₄H₃₀N₂O₃
MW: 394.52 g/mol

VQ-035604

Reference Standard

Ethyl

CAS: 1644619-42-0
Formula: C₁₁H₁₃ClN₂O₃
MW: 256.69 g/mol

VQ-035768

Reference Standard

Ethyl chemical structure

CAS: 2413365-40-7
Formula: C₁₇H₂₄N₂O₇
MW: 368.4 g/mol

VQ-035872

Reference Standard

Ethyl chemical structure

CAS: 365997-34-8
Formula: C₁₄H₂₄N₄O₄
MW: 312.36 g/mol

VQ-036879

Reference Standard

Ethyl chemical structure

CAS: 1932332-14-3
Formula: C₉H₁₇NO₃
MW: 187.24 g/mol

VQ-036893

Reference Standard

Ethyl chemical structure

CAS: 949465-91-2
Formula: C₂₅H₂₇ClFNO₅
MW: 475.9 g/mol

VQ-036964

Reference Standard

Ethyl chemical structure

CAS: 2212021-58-2
Formula: C₁₄H₂₄N₂O₄
MW: 284.35 g/mol

VQ-040633

Reference Standard

Ethyl

CAS: 2413471-13-1
Formula: C₂₄H₂₇NO₄
MW: 393.48 g/mol

VQ-042062

Reference Standard

Ethyl

CAS: 851528-81-9
Formula: C₂₁H₂₃F₃O₅S
MW: 444.5 g/mol

VQ-042126

Reference Standard

Ethyl

CAS: 851528-85-3
Formula: C₂₁H₂₃F₃O₅S
MW: 444.5 g/mol

VQ-042127

Reference Standard

Ethyl chemical structure

CAS: 212504-89-7
Formula: C₁₄H₂₆N₂O₃
MW: 270.37 g/mol

VQ-043511

Reference Standard

Ethyl chemical structure

CAS: 616201-27-5
Formula: C₃₈H₄₃FN₂O₅
MW: 626.8 g/mol

VQ-043969

Reference Standard

Ethyl chemical structure

CAS: 1022895-93-7
Formula: C₁₅H₂₄ClNO₃
MW: 301.81 g/mol

VQ-044423

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