(R)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid compound with sulfuric acid (1:1) CAS 19185-26-3

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (R)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid compound with sulfuric acid (1:1).

(R)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid compound with sulfuric acid (1:1) (CAS 19185-26-3), molecular formula C10H12N2O3H2O4S and molecular weight 306.29 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (R)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid compound with sulfuric acid (1:1) (C10H12N2O3H2O4S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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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