Darunavir Impurity 18 CAS 1932330-83-0

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1932330-83-0
Molecular FormulaC7H10O4
Molecular Weight158.15 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Darunavir Impurity 18 CAS 1932330-83-0 chemical structure

Description

Darunavir Impurity 18 (CAS 1932330-83-0) is a certified pharmaceutical impurity reference standard with the molecular formula C7H10O4 and a molecular weight of 158.15 g/mol.

The molecular framework of Darunavir Impurity 18 (C7H10O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

CATO manufactures Darunavir Impurity 18 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 FormulaC7H10O4
Molecular Weight158.15 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1996

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