6'-(Diethylamino)-3'-methyl-3-oxo-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid CAS 70815-12-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6'-(Diethylamino)-3'-methyl-3-oxo-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid.

CATO supplies 6'-(Diethylamino)-3'-methyl-3-oxo-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid (CAS 70815-12-2), a certified reference material (molecular formula C32H28N2O5, MW 520.58 g/mol) for analytical method development and quality control.

6'-(Diethylamino)-3'-methyl-3-oxo-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxylic acid (C32H28N2O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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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