Description

3-Hydroxy-2-Methylbenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a key intermediate in the synthesis of more complex organic molecules. Its value lies in its reactive phenolic and sulfonic acid functional groups, which allow for selective modifications in fine chemical manufacturing. This compound is essential for industrial chemists and manufacturers in the agrochemical, pharmaceutical, and specialty dye sectors who require high-purity building blocks for their synthesis processes.

Application

• Agrochemical Intermediate: A crucial precursor in the synthesis of advanced herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block for creating active pharmaceutical ingredients (APIs), particularly those with sulfonamide or phenolic motifs.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of azo dyes and other complex colorants, contributing to chromophore development.
• Chemical Research & Development: Serves as a valuable reagent in organic synthesis labs for exploring new reaction pathways and creating novel compounds.
• Polymer Modification: Can be utilized to introduce sulfonic acid groups into polymers, potentially altering solubility or adding ionic character.
• Catalyst and Ligand Preparation: Useful for synthesizing metal-chelating ligands or functionalized catalysts used in various chemical transformations.

Basic Information

Item	Detail
Product Name	3-Hydroxy-2-Methylbenzenesulfonic Acid
CAS No.	102014-38-0
Molecular Formula	C7H8O4S
Molecular Weight	188.20 g/mol
Synonyms	2-Methyl-3-hydroxybenzenesulfonic acid; 3-Hydroxy-o-toluenesulfonic acid; 2-Methylresorcinolsulfonic acid; 3-Hydroxy-2-methylbenzene-1-sulfonic acid; 1-Hydroxy-2-methyl-6-sulfobenzene; o-Cresol-3-sulfonic acid; 2-Methyl-3-sulfophenol
EINECS	Contact for details

Quality Control

Our 3-Hydroxy-2-Methylbenzenesulfonic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets exacting standards for use in sensitive synthesis applications. Certificates of Analysis (COA) documenting all test results are provided to guarantee traceability, consistency, and compliance with your specifications.

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). This product is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

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.