5-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide CAS 100130-40-3

Purity 97%+In StockPharmaceutical Standards
CAS No.100130-40-3
Molecular FormulaC5H7BrO2S
Molecular Weight211.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide CAS 100130-40-3 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

5-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide (CAS 100130-40-3) is a high-purity analytical reference standard with the molecular formula C5H7BrO2S and a molecular weight of 211.08 g/mol.

Structurally, 5-Bromo-4-methyl-2,3-dihydrothiophene 1,1-dioxide (C5H7BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 211.08 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC5H7BrO2S
Molecular Weight211.08 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1985
Halogen ContentBr-containing
Sulfur Atoms1

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