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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

Acebutolol Hydrochloride - Impurity J (Hydrochloride Salt) chemical structure

Acebutolol Hydrochloride - Impurity J (Hydrochloride Salt)

CAS: 57898-79-0
Formula: C₁₇H₂₇ClN₂O₄
MW: 358.9 g/mol

VQ-021407

Reference Standard

Acebutolol-d7 chemical structure

CAS: 2701782-36-5
Formula: C₁₈H₂₈N₂O₄
MW: 343.5 g/mol

VQ-043675

Reference Standard

Aceclofenac 13C2 D4 chemical structure

Aceclofenac 13C2 D4

CAS: 1795019-63-4
Formula: C₁₆H₁₃Cl₂NO₄
MW: 360.2 g/mol

VQ-035580

Reference Standard

Aceclofenac EP Impurity B chemical structure

Aceclofenac EP Impurity B

CAS: 15307-78-5
Formula: C₁₅H₁₃Cl₂NO₂
MW: 310.2 g/mol

VQ-021409

Reference Standard

Aceclofenac EP Impurity C chemical structure

Aceclofenac EP Impurity C

CAS: 15307-77-4
Formula: C₁₆H₁₅Cl₂NO₂
MW: 324.2 g/mol

VQ-020714

Reference Standard

Aceclofenac EP Impurity D chemical structure

Aceclofenac EP Impurity D

CAS: 139272-66-5
Formula: C₁₇H₁₅Cl₂NO₄
MW: 368.2 g/mol

VQ-020715

Reference Standard

Aceclofenac EP Impurity E chemical structure

Aceclofenac EP Impurity E

CAS: 139272-67-6
Formula: C₁₈H₁₇Cl₂NO₄
MW: 382.2 g/mol

VQ-020716

Reference Standard

Aceclofenac EP Impurity F chemical structure

Aceclofenac EP Impurity F

CAS: 100499-89-6
Formula: C₂₃H₁₉Cl₂NO₄
MW: 444.3 g/mol

VQ-020717

Reference Standard

Aceclofenac EP Impurity G (Freebase) chemical structure

Aceclofenac EP Impurity G (Freebase)

CAS: 1215709-75-3
Formula: C₁₈H₁₅Cl₂NO₆
MW: 412.2 g/mol

In stock

Reference Standard

Aceclofenac EP Impurity H chemical structure

Aceclofenac EP Impurity H

CAS: 1216495-92-9
Formula: C₂₀H₁₇Cl₂NO₈
MW: 470.3 g/mol

In stock

Reference Standard

Aceclofenac Nitroso Impurity 1 chemical structure

Aceclofenac Nitroso Impurity 1

Formula: C₁₆H₁₂Cl₂N₂O₅
MW: 383.2 g/mol

In stock

Reference Standard

Aceclofenac Tert-Butyl Ester chemical structure

Aceclofenac Tert-Butyl Ester

CAS: 139272-68-7
Formula: C₂₀H₂₁Cl₂NO₄
MW: 410.3 g/mol

VQ-021412

Reference Standard

Aceclofenac WS chemical structure

CAS: 89796-99-6
Formula: C₁₆H₁₃Cl₂NO₄
MW: 354.2 g/mol

In stock

Reference Standard

Acedapsone chemical structure

CAS: 77-46-3
Formula: C₁₆H₁₆N₂O₄S
MW: 332.4 g/mol

VQ-036547

Reference Standard

Acediasulfone chemical structure

CAS: 80-03-5
Formula: C₁₄H₁₄N₂O₄S
MW: 306.34 g/mol

VQ-024127

Reference Standard

Acedoben Acyl Glucuronide chemical structure

Acedoben Acyl Glucuronide

CAS: 34220-56-9
Formula: C₁₅H₁₇NO₉
MW: 355.3 g/mol

VQ-045250

Reference Standard

Acedoben-d3 chemical structure

CAS: 57742-39-9
Formula: C₉H₉NO₃
MW: 182.19 g/mol

VQ-024128

Reference Standard

Acemetacin chemical structure

CAS: 53164-05-9
Formula: C₂₁H₁₈ClNO₆
MW: 415.8 g/mol

VQ-021413

Reference Standard

Acemetacin EP Impurity D chemical structure

Acemetacin EP Impurity D

CAS: 76812-64-1
Formula: C₂₅H₂₆ClNO₆
MW: 471.9 g/mol

VQ-020719

Reference Standard

Acemetacin EP Impurity E chemical structure

Acemetacin EP Impurity E

CAS: 75302-98-6
Formula: C₂₅H₂₆ClNO₆
MW: 471.9 g/mol

VQ-020718

Reference Standard

Acemetacin EP Impurity F chemical structure

Acemetacin EP Impurity F

CAS: 76812-49-2
Formula: C₂₃H₂₀ClNO₈
MW: 473.9 g/mol

VQ-021414

Reference Standard

Acemetacin Impurity 1 chemical structure

Acemetacin Impurity 1

CAS: 77914-62-6
Formula: C₉H₁₀ClNO
MW: 183.63 g/mol

VQ-045364

Reference Standard

Acenaphthene-d10 chemical structure

Acenaphthene-d10

CAS: 15067-26-2
Formula: C₁₂H₁₀
MW: 164.27 g/mol

VQ-041161

Reference Standard

Acenaphthylene D8 chemical structure

Acenaphthylene D8

CAS: 93951-97-4
Formula: C₁₂H₈
MW: 160.24 g/mol

VQ-052397

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