1,2,3-Thiadiazole-4-carbohydrazide CAS 4100-18-9

Purity 97%+In StockPharmaceutical Standards
CAS No.4100-18-9
Molecular FormulaC3H4N4OS
Molecular Weight144.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2,3-Thiadiazole-4-carbohydrazide CAS 4100-18-9 chemical structure

Description

1,2,3-Thiadiazole-4-carbohydrazide (CAS 4100-18-9), molecular formula C3H4N4OS and molecular weight 144.16 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1,2,3-Thiadiazole-4-carbohydrazide (C3H4N4OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 144.16 g/mol, it falls into the low-molecular-weight range. 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 FormulaC3H4N4OS
Molecular Weight144.16 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)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Nitrogen Atoms4
Sulfur Atoms1

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