Description

3-Sulfobenzoic Acid Disodium Salt Monohydrate is a high-purity, water-soluble organic sulfonate salt widely used as a key intermediate and functional additive in advanced chemical synthesis. Its primary value lies in its ability to introduce sulfonate groups, imparting water solubility, stability, and specific reactivity to target molecules. This compound is essential for manufacturers and R&D teams in the pharmaceutical, specialty chemical, and dye industries seeking reliable and consistent raw materials for their processes.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring enhanced water solubility or specific ionic characteristics.
• Dye & Pigment Manufacturing: Serves as a functional intermediate in the production of water-soluble dyes, acid dyes, and reactive dyes, contributing to color fastness and application properties.
• Specialty Surfactant Synthesis: Used to create anionic surfactants and dispersants with excellent wetting, emulsifying, and solubilizing properties for industrial and institutional formulations.
• Chemical Research & Development: A valuable reagent in organic synthesis for introducing sulfonate moieties, studying reaction mechanisms, and developing new polymeric materials.
• Electroplating & Metal Treatment Additive: Functions as a brightening agent or complexing agent in electroplating baths and surface treatment solutions to improve finish quality and process stability.
• Polymer Modification: Employed to modify polymers, imparting ionic character, improving hydrophilicity, or creating ion-exchange resins and membranes.

Basic Information

Product Name	3-Sulfobenzoic Acid Disodium Salt Monohydrate
CAS No.	14995-40-5
Molecular Formula	C7H4Na2O7S • H2O
Molecular Weight	304.15 g/mol
Synonyms	Benzoic acid, 3-sulfo-, disodium salt, monohydrate; 3-Carboxybenzenesulfonic acid disodium salt monohydrate; m-Sulfobenzoic acid disodium salt monohydrate; Disodium 3-sulfobenzoate monohydrate; Sodium 3-sulfobenzoate hydrate; Meta-sulfobenzoate disodium salt
EINECS	Contact for details

Quality Control

Our 3-Sulfobenzoic Acid Disodium Salt Monohydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent specifications suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	5.0 - 7.0%
pH (5% solution)	7.0 - 9.0
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.