Butylphthalide Impurity 50 CAS CATO-C4X-181350

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-181350
Molecular FormulaC15H20O2
Molecular Weight232.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Butylphthalide Impurity 50 CAS CATO-C4X-181350 chemical structure

Description

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

Butylphthalide Impurity 50 (CAS CATO-C4X-181350) is a certified pharmaceutical impurity reference standard with the molecular formula C15H20O2 and a molecular weight of 232.32 g/mol.

The molecular framework of Butylphthalide Impurity 50 (C15H20O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), Butylphthalide Impurity 50 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC15H20O2
Molecular Weight232.32 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

Related Butylphthalide Standards

Recommended Standards

Why CATO?