Description

3,5-Disodiumsulfobenzoic Acid is a high-purity, water-soluble organic salt derived from benzoic acid, serving as a key intermediate and functional additive in advanced chemical synthesis. Its dual sulfonate groups provide excellent solubility and chelating properties, making it valuable for modifying surface characteristics and controlling reaction environments. This compound is essential for manufacturers in the dye, pharmaceutical, and specialty polymer industries seeking reliable, consistent performance in their formulations.

Application

• Dye and Pigment Intermediate: Acts as a solubilizing and coupling agent in the synthesis of acid dyes and reactive dyes, enhancing color fastness and water solubility.
• Pharmaceutical Synthesis: Used as a building block or counterion in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Polymer Modification: Serves as a monomer or additive to introduce sulfonate functionality into polymers, improving hydrophilicity and antistatic properties.
• Electroplating Additive: Functions as a brightener and leveling agent in electroplating baths to improve the quality and uniformity of metal deposits.
• Chelating Agent: Utilized in water treatment and detergent formulations to sequester metal ions like calcium and magnesium.
• Chemical Research: Employed as a standard or reagent in analytical chemistry and academic research for method development.

Basic Information

Product Name	3,5-Disodiumsulfobenzoic Acid
CAS No.	39624-59-4
Molecular Formula	C7H4Na2O7S2
Molecular Weight	326.20 g/mol
Synonyms	Benzoic acid, 3,5-disulfo-, disodium salt; 3,5-Disulfobenzoic Acid Disodium Salt; Disodium 3,5-disulfobenzoate; 3,5-Bis(sulfonato)benzoic Acid Disodium Salt; NSC 403814; Benzoic Acid, m-Disulfo-, Disodium Salt; 3,5-Disulfobenzoic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our 3,5-Disodiumsulfobenzoic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and composition. A Certificate of Analysis (COA) detailing the results for all critical parameters is provided and available upon request, guaranteeing traceability and compliance for your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	6.0 - 8.0
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.