Description

2-Sulfobenzoic Acid, Dipotassium Salt is a versatile organic salt widely utilized as a key intermediate and functional additive in advanced chemical synthesis. Its primary value lies in its water-soluble sulfonate group and potassium counter-ion, making it an effective catalyst, buffer, or anionic component in specialized formulations. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty polymer industries seeking reliable, high-purity raw materials.

Application

• Pharmaceutical Intermediate: Acts as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Catalyst & Ligand Precursor: Serves as a precursor for sulfonated ligands used in homogeneous catalysis and metal complexation.
• Polymer Modification: Employed to introduce sulfonate functionality into polymers, enhancing hydrophilicity and ionic character.
• Analytical Chemistry: Used as a standard or reagent in various analytical methods and buffer solutions.
• Agrochemical Synthesis: Functions as an intermediate in the production of certain herbicides and plant growth regulators.
• Electroplating & Surface Treatment: Can be used as an additive in plating baths to improve finish quality and process stability.

Basic Information

Product Name	2-Sulfobenzoic Acid, Dipotassium Salt
CAS No.	53608-78-9
Molecular Formula	C7H4K2O6S
Molecular Weight	294.37 g/mol
Synonyms	Dipotassium 2-Sulfobenzoate; Dipotassium Benzoate-2-sulfonate; 2-Carboxybenzenesulfonic Acid Dipotassium Salt; Benzoic Acid, 2-Sulfo-, Dipotassium Salt; K2SSA; Dipotassium Sulfosalicylate (common misnomer); Dipotassium o-Sulfobenzoate
EINECS	Contact for details

Quality Control

Our 2-Sulfobenzoic Acid, Dipotassium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and loss on drying are provided with every shipment to guarantee supply reliability and product traceability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled 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 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%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
pH (5% Solution)	6.0 - 8.0
Residue on Ignition (Sulfated Ash)	Reported on COA

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