Description

Hydroxydimethylbenzenesulphonic Acid is a versatile aromatic sulfonic acid derivative that serves as a key intermediate and functional additive in advanced chemical synthesis. Its molecular structure provides valuable properties for catalysis, surface modification, and as a building block for more complex molecules. This compound is essential for manufacturers and R&D facilities in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-purity intermediates.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Catalyst & Reaction Promoter: Acts as an acid catalyst or promoter in various organic synthesis reactions, including esterification and condensation.
• Surfactant & Detergent Precursor: Serves as a key raw material for manufacturing specialized anionic surfactants and high-performance cleaning formulations.
• Dye & Pigment Manufacturing: Employed as an intermediate in the production of sulfonated dyes and organic pigments.
• Electroplating Additive: Functions as a brightening agent or bath stabilizer in metal finishing and electroplating processes.
• Ion Exchange Resins: Used in the synthesis of certain ion exchange resins and polymeric materials.
• Research & Development: A valuable reagent for chemical research in academic and industrial laboratories.

Basic Information

Product Name	Hydroxydimethylbenzenesulphonic Acid
CAS No.	84924-84-5
Molecular Formula	C8H10O4S
Molecular Weight	202.23 g/mol
Synonyms	2-Hydroxy-3,5-dimethylbenzenesulfonic Acid; 3,5-Dimethyl-2-hydroxybenzenesulfonic Acid; 2,6-Dimethyl-4-hydroxybenzenesulfonic Acid; Dimethylphenolsulfonic Acid; Hydroxydimethylphenylsulfonic Acid; HDMSA; Phenol, dimethyl-, sulfonated
EINECS	Contact for details

Quality Control

Our Hydroxydimethylbenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters including assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring reliable and traceable raw materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.