5-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione CAS 109666-88-8

Description

The occurrence of 5-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione is closely related to an amide group, a sulfone group, 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.

CATO supplies 5-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione (CAS 109666-88-8), a certified reference material (molecular formula C7H5NO3S, MW 183.18 g/mol) for analytical method development and quality control.

The molecular framework of 5-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione (C7H5NO3S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 5-Methyl-2H-thieno[2,3-d][1,3]oxazine-2,4(1H)-dione 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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