(3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone CAS 1231609-13-4

Description

As a certified reference material (CRM), (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone 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.

(3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone (CAS 1231609-13-4), molecular formula C19H21N3O5S and molecular weight 403.45 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 403.45 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.

Physical & Chemical Properties

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