Methyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate CAS 1155910-18-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1155910-18-1
Molecular FormulaC8H5BrClFO4S
Molecular Weight331.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate CAS 1155910-18-1 chemical structure

Description

The occurrence of Methyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Methyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate (CAS 1155910-18-1), molecular formula C8H5BrClFO4S and molecular weight 331.54 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H5BrClFO4S, Methyl 2-bromo-5-(chlorosulfonyl)-4-fluorobenzoate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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 FormulaC8H5BrClFO4S
Molecular Weight331.54 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentF/Cl/Br-containing
Sulfur Atoms1

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