Eribulin Impurity 4 CAS CATO-C4X-26504

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-26504
Molecular FormulaC32H63IO7Si3
Molecular Weight771.00 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Eribulin Impurity 4 CAS CATO-C4X-26504 chemical structure

Description

Eribulin Impurity 4 (CAS CATO-C4X-26504) is a certified pharmaceutical impurity reference standard with the molecular formula C32H63IO7Si3 and a molecular weight of 771.00 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, Eribulin Impurity 4 is typically white to off-white amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 771.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 Eribulin Impurity 4 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 FormulaC32H63IO7Si3
Molecular Weight771.00 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)1.0
Halogen ContentI-containing

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