2-[5-Oxo-4-(thiophen-2-yl)-4,5-dihydro-1H-1,2,3,4-tetrazol-1-yl]acetic acid CAS 923226-02-2

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-Oxo-4-(thiophen-2-yl)-4,5-dihydro-1H-1,2,3,4-tetrazol-1-yl]acetic acid (CAS 923226-02-2) is a high-purity analytical reference standard with the molecular formula C7H6N4O3S and a molecular weight of 226.21 g/mol.

2-[5-Oxo-4-(thiophen-2-yl)-4,5-dihydro-1H-1,2,3,4-tetrazol-1-yl]acetic acid (C7H6N4O3S) 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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