3-(p-Tolyloxy)phthalic acid CAS 63181-80-6

Description

Compared with other compounds in its class, the molecular weight of 272.25 g/mol gives 3-(p-Tolyloxy)phthalic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(p-Tolyloxy)phthalic acid (CAS 63181-80-6) is a high-purity analytical reference standard with the molecular formula C15H12O5 and a molecular weight of 272.25 g/mol.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, 3-(p-Tolyloxy)phthalic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 272.25 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.

As a certified reference material (CRM), 3-(p-Tolyloxy)phthalic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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