4-Aminobenzoic Acid-d4 CAS 350820-01-8

Description

Compared with other compounds in its class, the molecular weight of 141.16 g/mol gives 4-Aminobenzoic Acid-d4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Aminobenzoic Acid-d4 (CAS 350820-01-8), molecular formula C7H3D4NO2 and molecular weight 141.16 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-Aminobenzoic Acid-d4 (C7H3D4NO2) is characterized by deuterium isotope labeling, an amino-acid-derived structure, 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).

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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