3,4-Diamino-1,2,5-thiadiazole 1-oxide CAS 81074-83-1

Purity 97%+In StockPharmaceutical Standards
CAS No.81074-83-1
Molecular FormulaC2H4N4OS
Molecular Weight132.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Diamino-1,2,5-thiadiazole 1-oxide CAS 81074-83-1 chemical structure

Description

3,4-Diamino-1,2,5-thiadiazole 1-oxide (CAS 81074-83-1) is a high-purity analytical reference standard with the molecular formula C2H4N4OS and a molecular weight of 132.14 g/mol.

3,4-Diamino-1,2,5-thiadiazole 1-oxide (C2H4N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

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

Molecular FormulaC2H4N4OS
Molecular Weight132.14 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1980
Nitrogen Atoms4
Sulfur Atoms1

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