Description

m-Hydroxybenzenesulphonic Acid is a versatile aromatic sulfonic acid derivative, serving as a critical intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its value lies in its reactive phenolic and sulfonic acid groups, which allow for precise functionalization and coupling in complex organic syntheses. This compound is essential for manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries seeking to develop high-performance products.

Application

• Dye and Pigment Intermediate: A key building block for synthesizing azo dyes, acid dyes, and other colorants.
• Pharmaceutical Synthesis: Used as an intermediate in the production of certain active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Manufacturing: Employed in the synthesis of herbicides, pesticides, and plant growth regulators.
• Chemical Research & Development: Serves as a versatile reagent for organic synthesis and material science research.
• Corrosion Inhibitor Formulation: Used in the preparation of specialty additives for industrial water treatment and metalworking fluids.
• Electroplating Additive: Functions as a brightening agent and leveler in specific electroplating baths.

Basic Information

Product Name	m-Hydroxybenzenesulphonic Acid
CAS No.	585-38-6
Molecular Formula	C6H6O4S
Molecular Weight	174.17 g/mol
Synonyms	3-Hydroxybenzenesulfonic Acid; Phenol-3-sulfonic Acid; m-Phenolsulfonic Acid; 3-Hydroxy-1-benzenesulfonic Acid; Metahydroxybenzenesulfonic Acid; 3-Phenolsulfonic Acid; Benzene-3-sulfonic acid, 1-hydroxy-; m-Sulfophenol
EINECS	209-537-3

Quality Control

Our m-Hydroxybenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your requirements.

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%
Water Content (KF)	≤ 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.