5-(sec-Butylthio)-1,3,4-thiadiazole-2-thiol CAS 19921-51-8

Purity 97%+In StockPharmaceutical Standards
CAS No.19921-51-8
Molecular FormulaC6H10N2S3
Molecular Weight206.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(sec-Butylthio)-1,3,4-thiadiazole-2-thiol CAS 19921-51-8 chemical structure

Description

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.

5-(sec-Butylthio)-1,3,4-thiadiazole-2-thiol (CAS 19921-51-8), molecular formula C6H10N2S3 and molecular weight 206.35 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-(sec-Butylthio)-1,3,4-thiadiazole-2-thiol (C6H10N2S3) contains a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 206.35 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC6H10N2S3
Molecular Weight206.35 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.)1962
Nitrogen Atoms2
Sulfur Atoms3

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