S,S-Di-tert-butyl propanebis(thioate) CAS 81787-33-9

Purity 97%+In StockPharmaceutical Standards
CAS No.81787-33-9
Molecular FormulaC11H20O2S2
Molecular Weight248.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

S,S-Di-tert-butyl propanebis(thioate) CAS 81787-33-9 chemical structure

Description

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.

S,S-Di-tert-butyl propanebis(thioate) (CAS 81787-33-9), molecular formula C11H20O2S2 and molecular weight 248.41 g/mol, is a CATO reference standard with documented purity and traceability.

S,S-Di-tert-butyl propanebis(thioate) (C11H20O2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC11H20O2S2
Molecular Weight248.41 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1980
Sulfur Atoms2

Recommended Standards

Why CATO?