Ethyl 7-hydroxy-8-methyl-2-oxo-2H-chromene-3-carboxylate CAS 133073-68-4

Description

The occurrence of Ethyl 7-hydroxy-8-methyl-2-oxo-2H-chromene-3-carboxylate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 7-hydroxy-8-methyl-2-oxo-2H-chromene-3-carboxylate (CAS 133073-68-4), molecular formula C13H12O5 and molecular weight 248.23 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Ethyl 7-hydroxy-8-methyl-2-oxo-2H-chromene-3-carboxylate (C13H12O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 248.23 g/mol, it falls into the medium-molecular-weight range. 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), Ethyl 7-hydroxy-8-methyl-2-oxo-2H-chromene-3-carboxylate 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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