5-(Fluorosulfonyl)-2-hydroxybenzoic acid CAS 400-96-4

Purity 97%+In StockPharmaceutical Standards
CAS No.400-96-4
Molecular FormulaC7H5FO5S
Molecular Weight220.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(Fluorosulfonyl)-2-hydroxybenzoic acid CAS 400-96-4 chemical structure

Description

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

5-(Fluorosulfonyl)-2-hydroxybenzoic acid (CAS 400-96-4) is a high-purity analytical reference standard with the molecular formula C7H5FO5S and a molecular weight of 220.18 g/mol.

Structurally, 5-(Fluorosulfonyl)-2-hydroxybenzoic acid (C7H5FO5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 220.18 g/mol, it falls into the medium-molecular-weight range. 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).

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.

CATO manufactures 5-(Fluorosulfonyl)-2-hydroxybenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H5FO5S
Molecular Weight220.18 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
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.)1957
Halogen ContentF-containing
Sulfur Atoms1

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