3-Bromo-4-methylthiophene CAS 30318-99-1

Purity 97%+In StockPharmaceutical Standards
CAS No.30318-99-1
Molecular FormulaC5H5BrS
Molecular Weight177.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Bromo-4-methylthiophene CAS 30318-99-1 chemical structure

Description

Owing to sulfur-containing functionality, bromine substitution, 3-Bromo-4-methylthiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 177.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

CATO supplies 3-Bromo-4-methylthiophene (CAS 30318-99-1), a certified reference material (molecular formula C5H5BrS, MW 177.06 g/mol) for analytical method development and quality control.

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

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 FormulaC5H5BrS
Molecular Weight177.06 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1965
Halogen ContentBr-containing
Sulfur Atoms1

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