7-Hydroxy-4-methyl-2H-benzo[h]chromen-2-one CAS 21353-16-2

Description

Compared with other compounds in its class, the molecular weight of 226.23 g/mol gives 7-Hydroxy-4-methyl-2H-benzo[h]chromen-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7-Hydroxy-4-methyl-2H-benzo[h]chromen-2-one (CAS 21353-16-2) is a high-purity analytical reference standard with the molecular formula C14H10O3 and a molecular weight of 226.23 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 7-Hydroxy-4-methyl-2H-benzo[h]chromen-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 226.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 7-Hydroxy-4-methyl-2H-benzo[h]chromen-2-one 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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