5-(Hexadecylthio)-1,3,4-thiadiazole-2(3H)-thione CAS 4858-33-7

Purity 97%+In StockPharmaceutical Standards
CAS No.4858-33-7
Molecular FormulaC18H34N2S3
Molecular Weight374.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(Hexadecylthio)-1,3,4-thiadiazole-2(3H)-thione CAS 4858-33-7 chemical structure

Description

5-(Hexadecylthio)-1,3,4-thiadiazole-2(3H)-thione (C18H34N2S3) contains a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).

5-(Hexadecylthio)-1,3,4-thiadiazole-2(3H)-thione (CAS 4858-33-7), molecular formula C18H34N2S3 and molecular weight 374.67 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC18H34N2S3
Molecular Weight374.67 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.)1958
Nitrogen Atoms2
Sulfur Atoms3

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