Description

2,5-Diaminobenzenesulfonic Acid Potassium Salt is an important aromatic sulfonate derivative, serving as a versatile intermediate in advanced organic synthesis. Its value lies in its dual functionality, providing both a reactive diamine and a water-solubilizing sulfonate group, which is critical for creating specialized dyes and functional materials. This compound is primarily needed by manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries for producing high-performance azo dyes, pharmaceutical actives, and photoactive compounds.

Application

• Dye & Pigment Intermediate: A key precursor for the synthesis of high-value azo dyes and pigments, particularly for textiles, inks, and coatings.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Production: Employed in the synthesis of specialized herbicides, fungicides, and plant growth regulators.
• Photographic Chemicals: Acts as a component in the formulation of color couplers and developers for photographic films and papers.
• Research & Development: Serves as a valuable reagent in organic chemistry research for constructing complex heterocyclic compounds.
• Polymer Modification: Utilized to introduce functional amine and sulfonate groups into polymer chains to alter solubility and reactivity.

Basic Information

Product Name	2,5-Diaminobenzenesulfonic Acid Potassium Salt
CAS No.	77847-12-2
Molecular Formula	C6H7KN2O3S
Molecular Weight	226.29 g/mol
Synonyms	2,5-Diaminobenzenesulfonic Acid Potassium Salt; 1,4-Diaminobenzene-2-sulfonic Acid Potassium Salt; Potassium 2,5-diaminobenzenesulfonate; 2,5-Diaminophenylsulfonic Acid Potassium Salt; 2-Amino-5-aminobenzenesulfonic Acid Potassium Salt; Benzenesulfonic acid, 2,5-diamino-, potassium salt; C.I. 76555 Potassium Salt
EINECS	Contact for details

Quality Control

Our 2,5-Diaminobenzenesulfonic Acid Potassium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for industrial and fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Light yellow to brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual ≤ 0.5%, Total ≤ 1.5%

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