4,5-Dimethyl-1,3,2-dioxathiolane 2,2-dioxide CAS 4440-89-5

Purity 97%+In StockPharmaceutical Standards
CAS No.4440-89-5
Molecular FormulaC4H8O4S
Molecular Weight152.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,5-Dimethyl-1,3,2-dioxathiolane 2,2-dioxide CAS 4440-89-5 chemical structure

Description

4,5-Dimethyl-1,3,2-dioxathiolane 2,2-dioxide (CAS 4440-89-5) is a high-purity analytical reference standard with the molecular formula C4H8O4S and a molecular weight of 152.17 g/mol.

The molecular framework of 4,5-Dimethyl-1,3,2-dioxathiolane 2,2-dioxide (C4H8O4S) is characterized by a carbohydrate-derived structure, a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

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 FormulaC4H8O4S
Molecular Weight152.17 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1958
Sulfur Atoms1

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