Description

2,4-Diaminobenzenesulfonic Acid is a vital aromatic sulfonic acid derivative, serving as a key organic intermediate in the synthesis of complex molecules. Its primary commercial value lies in its dual functional groups, which make it an essential building block for creating dyes, pigments, and specialty chemicals. This compound is particularly important for manufacturers in the dye, pharmaceutical, and agrochemical industries seeking to produce high-performance, color-fast products.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of azo dyes, acid dyes, and direct dyes, providing excellent color properties and lightfastness.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Production: Employed in the synthesis of herbicides, pesticides, and other crop protection chemicals.
• Chemical Research & Development: Serves as a versatile reagent in organic synthesis for creating sulfonated compounds and complex heterocycles.
• Photographic Chemicals: Used in the production of certain photographic developers and sensitizers.
• Corrosion Inhibitor Formulation: A component in specialty chemical formulations designed to protect metals.

Basic Information

Product Name	2,4-Diaminobenzenesulfonic Acid
CAS No.	88-63-1
Molecular Formula	C6H8N2O3S
Molecular Weight	188.20 g/mol
Synonyms	1,3-Diaminobenzene-4-sulfonic Acid; 2,4-Diaminophenylsulfonic Acid; 4-Sulfo-m-phenylenediamine; m-Phenylenediamine-4-sulfonic Acid; Sulfanilic Acid, 2,4-Diamino-; 4-Amino-2-aminobenzenesulfonic Acid; Benzene-1,3-diamine-4-sulfonic acid; 88-63-1
EINECS	201-849-7

Quality Control

Our 2,4-Diaminobenzenesulfonic Acid is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. Certificates of Analysis (COA) detailing results from HPLC, titration, and other relevant tests are provided to guarantee supply reliability and batch-to-batch consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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