Description

5-Hydroxytoluene-2,4-Disulphonic Acid is a versatile aromatic sulfonic acid derivative that serves as a critical intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its value lies in its dual sulfonic acid groups and phenolic hydroxyl group, which provide multiple reactive sites for creating complex molecular structures with specific color and functional properties. This compound is essential for manufacturers in the dye and pigment industry, as well as for research and development laboratories focused on advanced organic synthesis and material science.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of acid dyes, reactive dyes, and organic pigments, particularly for textiles and inks.
• Chemical Synthesis: Used as a versatile intermediate in organic synthesis to introduce sulfonic acid functionalities into target molecules.
• Pharmaceutical Intermediates: Employed in the research and development of certain active pharmaceutical ingredients (APIs) requiring specific aromatic sulfonate structures.
• Photographic Chemicals: Can be utilized in the formulation of certain specialty chemicals for photographic and imaging applications.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for exploring new chemical entities and material properties.
• Surfactant and Detergent Precursor: Acts as a potential starting material for the synthesis of specialized surfactants due to its hydrophilic sulfonic acid groups.

Basic Information

Item	Details
Product Name	5-Hydroxytoluene-2,4-Disulphonic Acid
CAS No.	15509-33-8
Molecular Formula	C7H8O7S2
Molecular Weight	268.26 g/mol
Synonyms	2,4-Disulfo-5-methylphenol; 5-Methylphenol-2,4-disulfonic Acid; Cresolsulfonic Acid; Toluene-2,4-disulfonic acid, 5-hydroxy-; 5-Hydroxy-m-toluenesulfonic acid; 5-Hydroxy-2,4-toluyldisulfonic Acid; 2,4-Disulfocresol
EINECS	Contact for details

Quality Control

Our 5-Hydroxytoluene-2,4-Disulphonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment. We adhere to industry best practices and can support requirements for GMP or other regulatory standards as needed.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions to prevent caking or decomposition. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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