Description

2-Hydroxy-3-Methylbenzenesulphonic Acid is a versatile aromatic sulfonic acid derivative, serving as a critical intermediate in the synthesis of high-value specialty chemicals. Its unique structure, featuring both a phenolic hydroxyl and a sulfonic acid group on a methyl-substituted benzene ring, makes it an essential building block for creating compounds with specific functional properties. This product is primarily utilized by manufacturers in the agrochemical, pharmaceutical, and dye industries who require reliable, high-purity intermediates for complex synthesis pathways.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of advanced herbicides, pesticides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs) and fine chemicals, particularly in creating sulfonamide derivatives.
• Dye and Pigment Manufacturing: Functions as an intermediate in the production of azo dyes and other colorants, contributing to chromophore development.
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid groups into complex molecular structures.
• Corrosion Inhibitor Formulation: Used in the development of specialty additives for industrial water treatment and metalworking fluids.
• Polymer Modification: Acts as a functional monomer or additive to impart specific ionic or solubility characteristics to polymers.

Basic Information

Product Name	2-Hydroxy-3-Methylbenzenesulphonic Acid
CAS No.	4016-01-7
Molecular Formula	C7H8O4S
Molecular Weight	188.20 g/mol
Synonyms	3-Methylsalicylic Acid-6-sulfonic Acid; 2-Hydroxy-3-methylbenzenesulfonic Acid; 6-Sulfo-m-cresol; 3-Methyl-6-sulfosalicylic Acid; m-Cresol-6-sulfonic Acid; 2-Hydroxy-3-toluene sulfonic Acid; 3-Methyl-2-hydroxybenzenesulfonic Acid; 6-Hydroxy-2-methylbenzenesulfonic Acid
EINECS	223-672-8

Quality Control

Our 2-Hydroxy-3-Methylbenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing results from tests including assay, related substances, and residual solvents. Our quality commitment ensures consistent performance and reliability for your critical synthesis processes.

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). Keep away from heat, sparks, and open flame. This material is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm

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