Description

4-Sulphobenzoic Acid Potassium Salt is an important organic sulfonate salt widely used as a key intermediate and functional additive. Its primary value lies in its water-solubility and anionic character, making it a versatile building block for specialty chemicals. This compound is essential for manufacturers in the pharmaceutical, agrochemical, and advanced material sectors seeking to introduce sulfonate functionality or enhance solubility in their products.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents requiring sulfonate groups.
• Agrochemical Synthesis: Serves as a precursor for herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Manufacturing: Acts as a solubilizing agent and intermediate in the production of water-soluble dyes and colorants.
• Polymer & Resin Modification: Incorporated to impart hydrophilicity, improve dyeability, or modify surface properties of polymers.
• Electroplating Additives: Functions as a brightening agent or stabilizer in electroplating baths.
• Research & Development: Employed in organic synthesis and chemical research as a standardized reagent.

Basic Information

Product Name	4-Sulphobenzoic Acid Potassium Salt
CAS No.	22959-32-6
Molecular Formula	C7H5KO5S
Molecular Weight	240.28 g/mol
Synonyms	Potassium 4-Sulfobenzoate; Benzoic acid, 4-sulfo-, potassium salt (1:1); 4-Carboxybenzenesulfonic Acid Potassium Salt; p-Sulfobenzoic Acid Potassium Salt; Potassium p-Sulfobenzoate; KSBA; 22959-32-6; Potassium 4-carboxybenzenesulfonate
EINECS	Contact for details

Quality Control

Our 4-Sulphobenzoic Acid Potassium Salt is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available for all shipments. We can support compliance requirements for various applications, including those requiring documentation for cGMP or ISO standards.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Conforms
pH (5% solution)	6.0 - 8.0

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