5-((4-Carboxy-2-methylphenyl)ethynyl)isophthalic acid CAS 2007142-71-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-((4-Carboxy-2-methylphenyl)ethynyl)isophthalic acid.

5-((4-Carboxy-2-methylphenyl)ethynyl)isophthalic acid (CAS 2007142-71-2) is a high-purity analytical reference standard with the molecular formula C18H12O6 and a molecular weight of 324.28 g/mol.

Structurally, 5-((4-Carboxy-2-methylphenyl)ethynyl)isophthalic acid (C18H12O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 324.28 g/mol, it falls into the moderately-high-molecular-weight range. 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), 5-((4-Carboxy-2-methylphenyl)ethynyl)isophthalic 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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