Guaiazulene Impurity 10 CAS CATO-C4X-223710

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-223710
Molecular FormulaC15H18O4S
Molecular Weight294.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Guaiazulene Impurity 10 CAS CATO-C4X-223710 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Guaiazulene Impurity 10 (CAS CATO-C4X-223710) is a certified pharmaceutical impurity reference standard with the molecular formula C15H18O4S and a molecular weight of 294.37 g/mol.

Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, Guaiazulene Impurity 10 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

Physical & Chemical Properties

Molecular FormulaC15H18O4S
Molecular Weight294.37 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Sulfur Atoms1

Related Guaiazulene Standards

Recommended Standards

Why CATO?