Description

Disodium Aniline-2,5-Disulphonate is a high-purity, water-soluble aromatic sulfonate salt. This compound serves as a critical intermediate in the synthesis of dyes, pigments, and specialty chemicals, valued for its consistent quality and reliable performance. It is essential for manufacturers in the dyestuff, pharmaceutical, and agrochemical industries seeking a stable and versatile building block for further chemical transformations.

Application

• Dye and Pigment Intermediate: A key precursor in the manufacturing of acid dyes, direct dyes, and reactive dyes.
• Pharmaceutical Synthesis: Used as an intermediate in the production 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 valuable reagent and building block in organic synthesis and material science research.
• Specialty Chemical Manufacturing: Used in the production of optical brighteners, fluorescent whitening agents, and other functional chemicals.

Basic Information

Item	Details
Product Name	Disodium Aniline-2,5-Disulphonate
CAS No.	41184-20-7
Molecular Formula	C6H5NNa2O6S2
Molecular Weight	273.21 g/mol
Synonyms	2,5-Disulfoaniline Disodium Salt; Aniline-2,5-disulfonic Acid Disodium Salt; 2-Aminobenzene-1,4-disulfonic Acid Disodium Salt; 2,5-Diaminobenzenesulfonic Acid Disodium Salt (common misnomer); Disodium 2-Amino-1,4-benzenedisulfonate; 1-Amino-2,5-benzenedisulfonic Acid Disodium Salt; C.I. 10319; Acid Yellow 36 Intermediate
EINECS	Contact for details

Quality Control

Our Disodium Aniline-2,5-Disulphonate is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and fine chemical applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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