4-Hydroxybenzenesulfonic Acid CAS 98-67-9

Purity >95%In StockPharmaceutical Standards
CAS No.98-67-9
Molecular FormulaC6H6O4S
Molecular Weight174.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Hydroxybenzenesulfonic Acid CAS 98-67-9 chemical structure

Description

4-Hydroxybenzenesulfonic Acid (CAS 98-67-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C6H6O4S. Molecular weight: 174.17 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC6H6O4S
Molecular Weight174.17 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Sulfur Atoms1

Related Hydroxybenzenesulfonic Standards

Recommended Standards

Why CATO?