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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

Eltrombopag-13C4 chemical structure

Eltrombopag-13C4

CAS: 1217230-31-3
Formula: C₂₅H₂₂N₄O₄
MW: 446.4 g/mol

VQ-030446

Reference Standard

Eluxadoline chemical structure

CAS: 864821-90-9
Formula: C₃₂H₃₅N₅O₅
MW: 569.6 g/mol

VQ-043149

Reference Standard

Elvitegravir chemical structure

CAS: 697761-98-1
Formula: C₂₃H₂₃ClFNO₅
MW: 447.9 g/mol

VQ-030448

Reference Standard

Elvitegravir Impurity 1 chemical structure

Elvitegravir Impurity 1

CAS: 1484038-03-0
Formula: C₁₅H₁₄ClFO₂
MW: 280.72 g/mol

VQ-050527

Reference Standard

Emamectin Benzoate chemical structure

Emamectin Benzoate

CAS: 155569-91-8
Formula: C₅₆H₈₁NO₁₅
MW: 1008.2 g/mol

VQ-036965

Reference Standard

Embelin chemical structure

CAS: 550-24-3
Formula: C₁₇H₂₆O₄
MW: 294.4 g/mol

VQ-048191

Reference Standard

Emedastine Difumarate chemical structure

Emedastine Difumarate

CAS: 87233-62-3
Formula: C₂₅H₃₄N₄O₉
MW: 534.6 g/mol

VQ-025520

Reference Standard

Emedastine EP Impurity A chemical structure

Emedastine EP Impurity A

CAS: 101953-61-1
Formula: C₁₁H₁₄N₂O₂
MW: 206.24 g/mol

VQ-035034

Reference Standard

Emedastine EP Impurity B chemical structure

Emedastine EP Impurity B

CAS: 87233-54-3
Formula: C₁₁H₁₃ClN₂O
MW: 224.68 g/mol

VQ-035474

Reference Standard

Emedastine EP Impurity C chemical structure

Emedastine EP Impurity C

CAS: 122423-32-9
Formula: C₁₅H₂₂N₄O
MW: 274.36 g/mol

VQ-035475

Reference Standard

Emedastine EP Impurity D chemical structure

Emedastine EP Impurity D

CAS: 130263-14-8
Formula: C₁₅H₂₀N₄
MW: 256.35 g/mol

VQ-044957

Reference Standard

Emedastine EP Impurity E chemical structure

Emedastine EP Impurity E

CAS: 101954-20-5
Formula: C₁₆H₂₄N₄O
MW: 288.39 g/mol

VQ-045133

Reference Standard

Emivirine chemical structure

CAS: 149950-60-7
Formula: C₁₇H₂₂N₂O₃
MW: 302.37 g/mol

VQ-048192

Reference Standard

Emodepside chemical structure

CAS: 155030-63-0
Formula: C₆₀H₉₀N₆O₁₄
MW: 1119.4 g/mol

VQ-036966

Reference Standard

Emoxypine Succinate chemical structure

Emoxypine Succinate

CAS: 127464-43-1
Formula: C₁₂H₁₇NO₅
MW: 255.27 g/mol

VQ-030449

Reference Standard

Empagliflozin 5-Di-THF Impurity

Empagliflozin 5-Di-THF Impurity

Formula: C₂₇H₃₃ClO₈
MW: 520.19 g/mol

In stock

Reference Standard

Empagliflozin 6-Di-THF Impurity

Empagliflozin 6-Di-THF Impurity

Formula: C₂₇H₃₃ClO₈
MW: 520.19 g/mol

In stock

Reference Standard

Empagliflozin Acetyl Impurity chemical structure

Empagliflozin Acetyl Impurity

CAS: 1079083-63-8
Formula: C₂₇H₂₉ClO₁₀
MW: 549 g/mol

In stock

Reference Standard

Empagliflozin Aglycon Phenol chemical structure

Empagliflozin Aglycon Phenol

CAS: 2770456-61-4
Formula: C₁₇H₁₇ClO₃
MW: 304.8 g/mol

VQ-036974

Reference Standard

Empagliflozin Alpha Anomer-Unknown Impurity

Empagliflozin Alpha Anomer-Unknown Impurity

Formula: C₁₂H₁₆O₉
MW: 304.25 g/mol

In stock

Reference Standard

Empagliflozin alpha Isomer chemical structure

Empagliflozin alpha Isomer

CAS: 1620758-33-9
Formula: C₂₃H₂₇ClO₇
MW: 450.9 g/mol

In stock

Reference Standard

Empagliflozin Bromo Impurity chemical structure

Empagliflozin Bromo Impurity

CAS: 915095-89-5
Formula: C₁₇H₁₆BrClO₂
MW: 367.7 g/mol

In stock

Reference Standard

Empagliflozin Desbromo Impurity chemical structure

Empagliflozin Desbromo Impurity

CAS: 2517968-35-1
Formula: C₁₇H₁₇ClO₂
MW: 288.8 g/mol

In stock

Reference Standard

Empagliflozin Desbromo Methoxy Impurity

Empagliflozin Desbromo Methoxy Impurity

Formula: C₁₈H₁₉ClO₃
MW: 318.8 g/mol

In stock

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