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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

Caldiamide chemical structure

CAS: 119895-95-3
Formula: C₁₆H₂₉N₅O₈
MW: 419.43 g/mol

VQ-036095

Reference Standard

Caldiamide Sodium chemical structure

Caldiamide Sodium

CAS: 131410-50-9
Formula: C₁₆H₂₆CaN₅NaO₈
MW: 479.47 g/mol

VQ-036094

Reference Standard

Calicheamicin chemical structure

CAS: 108212-75-5
Formula: C₅₅H₇₄IN₃O₂₁S₄
MW: 1368.4 g/mol

VQ-047668

Reference Standard

Caloxetic acid chemical structure

CAS: 158599-72-5
Formula: C₂₃H₃₃N₃O₁₁
MW: 527.5 g/mol

VQ-037478

Reference Standard

Calteridol Calcium chemical structure

Calteridol Calcium

CAS: 121915-83-1
Formula: C₃₄H₅₈Ca₃N₈O₁₄
MW: 923.1 g/mol

VQ-036096

Reference Standard

Calycosin chemical structure

CAS: 20575-57-9
Formula: C₁₆H₁₂O₅
MW: 284.26 g/mol

VQ-051373

Reference Standard

Cambendazole chemical structure

CAS: 26097-80-3
Formula: C₁₄H₁₄N₄O₂S
MW: 302.35 g/mol

VQ-036097

Reference Standard

Camellianoside chemical structure

CAS: 926664-29-1
Formula: C₃₂H₃₈O₂₀
MW: 742.6 g/mol

VQ-033708

Reference Standard

Camizestrant RR Diastereomer chemical structure

Camizestrant RR Diastereomer

CAS: 2222846-06-0
Formula: C₂₄H₂₈F₄N₆
MW: 476.5 g/mol

VQ-047669

Reference Standard

Camostat chemical structure

CAS: 59721-28-7
Formula: C₂₀H₂₂N₄O₅
MW: 398.4 g/mol

VQ-045249

Reference Standard

Camostat Impurity 1 (HCl Salt)

Camostat Impurity 1 (HCl Salt)

CAS: 141651-89-0
Formula: C₁₆H₁₅N₃O₄ : HCl

VQ-045400

Reference Standard

Camostat Mesylate chemical structure

Camostat Mesylate

CAS: 59721-29-8
Formula: C₂₁H₂₆N₄O₈S
MW: 494.5 g/mol

VQ-036098

Reference Standard

Campestanol chemical structure

CAS: 474-60-2
Formula: C₂₈H₅₀O
MW: 402.7 g/mol

VQ-027285

Reference Standard

Campesteryl Ferulate chemical structure

Campesteryl Ferulate

CAS: 20972-07-0
Formula: C₃₈H₅₆O₄
MW: 576.8 g/mol

VQ-036099

Reference Standard

Camptothecin Sodium Salt chemical structure

Camptothecin Sodium Salt

CAS: 72517-83-0
Formula: C₂₀H₁₆N₂NaO₄⁺
MW: 371.3 g/mol

VQ-044327

Reference Standard

Camylofin Dihydrochloride chemical structure

Camylofin Dihydrochloride

CAS: 5892-41-1
Formula: C₁₉H₃₄Cl₂N₂O₂
MW: 393.4 g/mol

VQ-024734

Reference Standard

Canagliflozin 2-Glucuronide chemical structure

Canagliflozin 2-Glucuronide

CAS: 2648415-15-8
Formula: C₃₀H₃₃FO₁₁S
MW: 620.6 g/mol

VQ-044646

Reference Standard

Canagliflozin 2-Methylphenyl Impurity chemical structure

Canagliflozin 2-Methylphenyl Impurity

CAS: 2161394-95-0
Formula: C₂₄H₂₅FO₅S
MW: 444.5 g/mol

In stock

Reference Standard

Canagliflozin 3-Regio Isomer (Open Chain)

Canagliflozin 3-Regio Isomer (Open Chain)

Formula: C₂₄H₂₅FO₆S
MW: 460.52 g/mol

In stock

Reference Standard

Canagliflozin 3-Regio Isomer Stage -1 chemical structure

Canagliflozin 3-Regio Isomer Stage -1

CAS: 2444540-10-5
Formula: C₁₈H₁₄FIS
MW: 408.3 g/mol

In stock

Reference Standard

Canagliflozin Alpha Isomer chemical structure

Canagliflozin Alpha Isomer

CAS: 1589590-87-3
Formula: C₂₄H₂₅FO₅S
MW: 444.5 g/mol

In stock

Reference Standard

Canagliflozin Desfluoro Impurity chemical structure

Canagliflozin Desfluoro Impurity

CAS: 842133-16-8
Formula: C₂₄H₂₆O₅S
MW: 426.5 g/mol

In stock

Reference Standard

Canagliflozin Dimer Impurity

Canagliflozin Dimer Impurity

CAS: 2161394-96-1
Formula: C₄₈H₅₀F₂O₁₁S₂
MW: 905.03 g/mol

VQ-021967

Reference Standard

Canagliflozin Dimethoxy Impurity chemical structure

Canagliflozin Dimethoxy Impurity

CAS: 1883604-11-2
Formula: C₂₆H₂₉FO₇S
MW: 504.6 g/mol

In stock

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