Thioctic acid Impurity 87 CAS CATO-C4X-152687

Description

The occurrence of Thioctic acid Impurity 87 is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Thioctic acid Impurity 87 (CAS CATO-C4X-152687), a pharmacopoeial impurity reference standard (molecular formula C9H16O2S3, MW 252.42 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Thioctic acid Impurity 87 (C9H16O2S3) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 252.42 g/mol, it falls into the medium-molecular-weight range.

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.

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.

Physical & Chemical Properties

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