Erythromycin Sulfonamide Impurity B Oxime Derivative CAS 231620-64-7

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Erythromycin Sulfonamide Impurity B Oxime Derivative.

Erythromycin Sulfonamide Impurity B Oxime Derivative (CAS 231620-64-7) is a certified pharmaceutical impurity reference standard with the molecular formula C37H68N2O12 and a molecular weight of 732.94 g/mol.

The molecular framework of Erythromycin Sulfonamide Impurity B Oxime Derivative (C37H68N2O12) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

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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