Description

Sodium Dihydrogen 3,5-Disulphonatobenzoate is a versatile, water-soluble aromatic sulfonate salt widely used as a key intermediate and functional additive. Its value lies in its ability to impart solubility, stability, and specific ionic characteristics to complex formulations. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking high-purity intermediates for synthesis and product enhancement.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring enhanced water solubility.
• Agrochemical Formulations: Used in the production of herbicides, fungicides, and plant growth regulators where its sulfonate groups improve formulation stability and bioavailability.
• Dye & Pigment Industry: Acts as a solubilizing agent and intermediate in the manufacture of acid dyes and organic pigments.
• Catalyst & Ligand Synthesis: Functions as a precursor for water-soluble ligands used in homogeneous catalysis and metal complexation.
• Analytical Chemistry: Employed as a standard or reagent in various analytical methods and calibration procedures.
• Specialty Surfactants & Dispersants: Incorporated into formulations requiring anionic character and high solubility for dispersion and wetting applications.

Basic Information

Product Name	Sodium Dihydrogen 3,5-Disulphonatobenzoate
CAS No.	83929-52-6
Molecular Formula	C7H5NaO8S2
Molecular Weight	304.22 g/mol
Synonyms	Benzoic acid, 3,5-disulfo-, sodium salt (1:3); 3,5-Disulfobenzoic Acid Trisodium Salt; Trisodium 3,5-Disulfobenzoate; Sodium 3,5-Disulfobenzoate; 3,5-Disulfobenzoic Acid Sodium Salt; Benzoic-3,5-disulfonic Acid Trisodium Salt; 3,5-Bis(sulfo)benzoic Acid Trisodium Salt
EINECS	Contact for details

Quality Control

Our Sodium Dihydrogen 3,5-Disulphonatobenzoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. Certificates of Analysis (COA) documenting results for assay, related substances, residual solvents, and other critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled 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, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
pH (5% solution)	3.0 - 5.0

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