Sodium 5-methylisophthalate CAS 50977-75-8

Description

Compared with other compounds in its class, the molecular weight of 201.13 g/mol gives Sodium 5-methylisophthalate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Sodium 5-methylisophthalate (CAS 50977-75-8) is a high-purity analytical reference standard with the molecular formula C9H6O4Na and a molecular weight of 201.13 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Sodium 5-methylisophthalate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.13 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.

CATO manufactures Sodium 5-methylisophthalate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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