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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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Sorafenib-13C,d3 chemical structure

Sorafenib-13C,d3

CAS: 1210608-86-8
Formula: C₂₁H₁₆ClF₃N₄O₃
MW: 468.8 g/mol

VQ-033929

Reference Standard

Sorafenib-d3 chemical structure

CAS: 1130115-44-4
Formula: C₂₁H₁₆ClF₃N₄O₃
MW: 467.8 g/mol

VQ-028092

Reference Standard

Sorafenib-d4 chemical structure

CAS: 1207560-07-3
Formula: C₂₁H₁₆ClF₃N₄O₃
MW: 468.8 g/mol

VQ-033928

Reference Standard

Sorbic Acid chemical structure

CAS: 110-44-1
Formula: C₆H₈O₂
MW: 112.13 g/mol

VQ-007763

Reference Standard

Sotagliflozin chemical structure

CAS: 1018899-04-1
Formula: C₂₁H₂₅ClO₅S
MW: 424.9 g/mol

VQ-028093

Reference Standard

Sotalol chemical structure

CAS: 3930-20-9
Formula: C₁₂H₂₀N₂O₃S
MW: 272.37 g/mol

In stock

Reference Standard

Sotalol EP Impurity A chemical structure

Sotalol EP Impurity A

CAS: 16974-42-8
Formula: C₁₂H₂₀N₂O₂S
MW: 256.37 g/mol

VQ-033930

Reference Standard

Sotalol EP Impurity B chemical structure

Sotalol EP Impurity B

CAS: 60735-85-5
Formula: C₁₂H₁₈N₂O₃S
MW: 270.35 g/mol

VQ-033931

Reference Standard

Sotalol EP Impurity C chemical structure

Sotalol EP Impurity C

CAS: 83922-54-7
Formula: C₈H₉NO₃S
MW: 199.23 g/mol

VQ-028094

Reference Standard

Sotalol EP Impurity D chemical structure

Sotalol EP Impurity D

CAS: 2724689-38-5
Formula: C₁₂H₂₀N₂O₃S
MW: 272.37 g/mol

VQ-028095

Reference Standard

Sotalol EP Impurity D HCl chemical structure

Sotalol EP Impurity D HCl

CAS: 2724689-39-6
Formula: C₁₂H₂₁ClN₂O₃S
MW: 308.83 g/mol

VQ-033932

Reference Standard

Sotalol Hydrochloride chemical structure

Sotalol Hydrochloride

CAS: 959-24-0
Formula: C₁₂H₂₁ClN₂O₃S
MW: 308.83 g/mol

VQ-023789

Reference Standard

Sotorasib chemical structure

CAS: 2296729-00-3
Formula: C₃₀H₃₀F₂N₆O₃
MW: 560.6 g/mol

VQ-023793

Reference Standard

Sovateltide chemical structure

CAS: 142569-99-1
Formula: C₈₆H₁₁₇N₁₇O₂₇
MW: 1820.9 g/mol

VQ-033933

Reference Standard

Sparfloxacin De-amino impurity chemical structure

Sparfloxacin De-amino impurity

CAS: 103460-90-8
Formula: C₁₉H₂₁F₂N₃O₃
MW: 377.4 g/mol

VQ-042239

Reference Standard

Sparsentan chemical structure

CAS: 254740-64-2
Formula: C₃₂H₄₀N₄O₅S
MW: 592.8 g/mol

VQ-028096

Reference Standard

Sparsentan Desethyl Impurity

Sparsentan Desethyl Impurity

CAS: 254740-63-1
Formula: C₃₀H₃₆N₄O₅S
MW: 564.7 g/mol

VQ-035496

Reference Standard

Sparsentan Ester Impurity chemical structure

Sparsentan Ester Impurity

CAS: 1247868-68-3
Formula: C₂₅H₃₀N₂O₇S
MW: 502.6 g/mol

VQ-028097

Reference Standard

Sparsentan Hydroxy Des-MOM Impurity chemical structure

Sparsentan Hydroxy Des-MOM Impurity

CAS: 1201793-64-7
Formula: C₂₁H₂₄N₂O₅S
MW: 416.5 g/mol

VQ-028099

Reference Standard

Sparsentan Methoxy Methyl Impurity

Sparsentan Methoxy Methyl Impurity

CAS: 254741-35-0
Formula: C₃₁H₃₈N₄O₅S
MW: 578.72 g/mol

VQ-042240

Reference Standard

Sparsentan Methyl Impurity chemical structure

Sparsentan Methyl Impurity

CAS: 254741-40-7
Formula: C₃₀H₃₆N₄O₄S
MW: 548.7 g/mol

VQ-028101

Reference Standard

Sparsentan Open Ring Impurity chemical structure

Sparsentan Open Ring Impurity

CAS: 1347979-29-6
Formula: C₃₂H₄₂N₄O₆S
MW: 610.8 g/mol

VQ-028102

Reference Standard

Sparsentan Sulfonic Acid Impurity

Sparsentan Sulfonic Acid Impurity

CAS: 1255948-69-6
Formula: C₂₇H₃₄N₂O₅S
MW: 498.6 g/mol

VQ-035511

Reference Standard

Sparsentan-d5 chemical structure

CAS: 1801597-09-0
Formula: C₃₂H₄₀N₄O₅S
MW: 597.8 g/mol

VQ-027318

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