Description

Benzene-m-Disulphonate CAS NO 22713-46-8 is a specialized organic chemical intermediate characterized by its disulfonate functional groups on a benzene ring. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly dyes, pigments, and optical brighteners. It is essential for manufacturers in the fine chemical, specialty dye, and advanced material sectors seeking to produce high-performance additives and colorants.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of sulfonated azo dyes and high-value organic pigments.
• Optical Brightener Production: Serves as a key starting material for manufacturing stilbene-based optical brightening agents (OBAs) used in paper, detergents, and textiles.
• Fine Chemical Synthesis: Employed as a versatile building block for creating sulfonated ligands, pharmaceutical intermediates, and specialty surfactants.
• Polymer Modification: Used to introduce sulfonate groups into polymers to enhance hydrophilicity, dyeability, or ionic character.
• Research & Development: Utilized in academic and industrial R&D for exploring new synthetic pathways and functional materials.
• Electroplating Additives: Can be a component in formulations for specialty electroplating baths.

Basic Information

Product Name	Benzene-m-Disulphonate
CAS No.	22713-46-8
Molecular Formula	C6H4(SO3H)2
Molecular Weight	~ 282.23 g/mol (as free acid)
Synonyms	1,3-Benzenedisulfonic Acid; m-Benzenedisulfonic Acid; Benzene-1,3-disulfonic Acid; meta-Benzenedisulphonate; 3-Sulfobenzenesulfonic Acid; Benzene-m-disulfonate; MBDSA; Benzene-1,3-disulphonate
EINECS	Contact for details

Quality Control

Our Benzene-m-Disulphonate is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identification. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

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

Specification

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

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