4-Fluoro-2-methylbenzenesulfonamide 4-fluoro-2-methyl-benzenesulfonamide 4-fluoro-2-methylbenzenesulphonamide 4-fluoro-2-methylbenzene-1-sulfonamide 489-17-8 CAS 489-17-8

Purity 97%+In StockPharmaceutical Standards
CAS No.489-17-8
Molecular FormulaC7H8FNO2S
Molecular Weight189.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Fluoro-2-methylbenzenesulfonamide 4-fluoro-2-methyl-benzenesulfonamide 4-fluoro-2-methylbenzenesulphonamide 4-fluoro-2-methylbenzene-1-sulfonamide 489-17-8 CAS 489-17-8 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.

4-Fluoro-2-methylbenzenesulfonamide 4-fluoro-2-methyl-benzenesulfonamide 4-fluoro-2-methylbenzenesulphonamide 4-fluoro-2-methylbenzene-1-sulfonamide 489-17-8 (CAS 489-17-8) is a high-purity analytical reference standard with the molecular formula C7H8FNO2S and a molecular weight of 189.21 g/mol.

Based on its molecular formula C7H8FNO2S, 4-Fluoro-2-methylbenzenesulfonamide 4-fluoro-2-methyl-benzenesulfonamide 4-fluoro-2-methylbenzenesulphonamide 4-fluoro-2-methylbenzene-1-sulfonamide 489-17-8 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), 4-Fluoro-2-methylbenzenesulfonamide 4-fluoro-2-methyl-benzenesulfonamide 4-fluoro-2-methylbenzenesulphonamide 4-fluoro-2-methylbenzene-1-sulfonamide 489-17-8 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H8FNO2S
Molecular Weight189.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF-containing
Nitrogen Atoms1
Sulfur Atoms1

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