2,5-Dimethyl-2H-1,2,6-thiadiazine-4-carboxylic acid 1,1-dioxide CAS 1443978-74-2

Description

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

2,5-Dimethyl-2H-1,2,6-thiadiazine-4-carboxylic acid 1,1-dioxide (CAS 1443978-74-2), molecular formula C6H8N2O4S and molecular weight 204.20 g/mol, is a CATO reference standard with documented purity and traceability.

2,5-Dimethyl-2H-1,2,6-thiadiazine-4-carboxylic acid 1,1-dioxide (C6H8N2O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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