Pazopanib Impurity 26 CAS 55873-09-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.55873-09-1
Molecular FormulaC4H3ClN2O
Molecular Weight130.53 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pazopanib Impurity 26 CAS 55873-09-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 130.53 g/mol gives Pazopanib Impurity 26 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Pazopanib Impurity 26 (CAS 55873-09-1), a pharmacopoeial impurity reference standard (molecular formula C4H3ClN2O, MW 130.53 g/mol) used for the identification and quantification of trace impurities in APIs.

Pazopanib Impurity 26 (C4H3ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO manufactures Pazopanib Impurity 26 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC4H3ClN2O
Molecular Weight130.53 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1972
Halogen ContentCl-containing
Nitrogen Atoms2

Related Pazopanib Standards

Recommended Standards

Why CATO?