Butylphthalide Impurity 77 CAS CATO-C4X-181377

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-181377
Molecular FormulaC16H22O
Molecular Weight230.35 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Butylphthalide Impurity 77 CAS CATO-C4X-181377 chemical structure

Description

Butylphthalide Impurity 77 (CAS CATO-C4X-181377) is a certified pharmaceutical impurity reference standard with the molecular formula C16H22O and a molecular weight of 230.35 g/mol.

Structurally, Butylphthalide Impurity 77 (C16H22O) contains a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 230.35 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), Butylphthalide Impurity 77 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 FormulaC16H22O
Molecular Weight230.35 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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