Description

2,4-Dihydroxybenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a key intermediate in the synthesis of high-value fine chemicals and functional materials. Its unique structure, featuring both phenolic hydroxyl and sulfonic acid groups, makes it a valuable building block for creating compounds with specific chelating, dyeing, and catalytic properties. This product is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop advanced formulations and active ingredients.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring specific solubility or metal-chelating functionalities.
• Dye and Pigment Manufacturing: Used as a coupling agent and intermediate in the production of azo dyes, hair dyes, and other colorants, contributing to color fastness and stability.
• Chemical Synthesis Building Block: Serves as a versatile starting material for creating complex molecules in agrochemicals, UV absorbers, and polymer additives.
• Analytical Reagent: Employed in analytical chemistry as a reagent for the detection and quantification of specific metal ions due to its chelating properties.
• Electroplating Additive: Functions as a brightening agent and complexant in electroplating baths to improve the quality and uniformity of metal deposits.
• Photographic Chemical: Used in the formulation of certain photographic developers and other light-sensitive chemicals.

Basic Information

Product Name	2,4-Dihydroxybenzenesulfonic Acid
CAS No.	6409-58-1
Molecular Formula	C6H6O5S
Molecular Weight	190.17 g/mol
Synonyms	2,4-Dihydroxybenzenesulphonic Acid; 4-Hydroxy-1,3-benzenedisulfonic Acid (tautomer); 1,3-Dihydroxy-4-benzenesulfonic Acid; 2,4-Dihydroxybenzene-1-sulfonic Acid; 4-Hydroxyresorcinolsulfonic Acid; Resorcinolsulfonic Acid; 2,4-DHBSA; Contact for additional trade names.
EINECS	229-058-5

Quality Control

Our 2,4-Dihydroxybenzenesulfonic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical characteristics. We can supply material meeting various purity grades, including technical and higher purity standards suitable for pharmaceutical synthesis. Certificates of Analysis (COA) are available upon request for your quality assurance and regulatory compliance needs.

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 to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 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.