3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)-4-methylbenzoic acid CAS 895766-35-5

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)-4-methylbenzoic acid.

3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)-4-methylbenzoic acid (CAS 895766-35-5), molecular formula C16H17NO4 and molecular weight 287.31 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 3-(1,3-Dioxooctahydro-2H-isoindol-2-yl)-4-methylbenzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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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