Eribulin Impurity 10 CAS CATO-C4X-265010

Purity 95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-265010
Molecular FormulaC46H80O9SSi2
Molecular Weight865.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Eribulin Impurity 10 CAS CATO-C4X-265010 chemical structure

Description

CATO supplies Eribulin Impurity 10 (CAS CATO-C4X-265010), a pharmacopoeial impurity reference standard (molecular formula C46H80O9SSi2, MW 865.36 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Eribulin Impurity 10 (C46H80O9SSi2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 865.36 g/mol, it falls into the high-molecular-weight range. 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.

As a certified reference material (CRM), Eribulin Impurity 10 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 FormulaC46H80O9SSi2
Molecular Weight865.36 g/mol
Purity95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
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

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