1-Amino-2-chloro-4-(p-tolylamino)anthracene-9,10-dione CAS 33966-23-3

Description

The occurrence of 1-Amino-2-chloro-4-(p-tolylamino)anthracene-9,10-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1-Amino-2-chloro-4-(p-tolylamino)anthracene-9,10-dione (CAS 33966-23-3), molecular formula C21H15ClN2O2 and molecular weight 362.81 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C21H15ClN2O2, 1-Amino-2-chloro-4-(p-tolylamino)anthracene-9,10-dione contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 362.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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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