Desogestrel EP Impurity E/Desogestrel USP RC B CAS 70805-85-5

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Desogestrel EP Impurity E/Desogestrel USP RC B.

CATO supplies Desogestrel EP Impurity E/Desogestrel USP RC B (CAS 70805-85-5), a pharmacopoeial impurity reference standard (molecular formula C22H30O2, MW 326.47 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Desogestrel EP Impurity E/Desogestrel USP RC B (C22H30O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 326.47 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Desogestrel EP Impurity E/Desogestrel USP RC B 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

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