Description

Sodium Hydrogen Aniline-2,4-Disulphonate is a specialized organic intermediate and salt, widely recognized for its role in the synthesis of dyes and pigments. This compound is valued for its ability to introduce sulfonate groups, which enhance water solubility and dye fastness properties in final products. It is a critical raw material for manufacturers in the colorant, textile, and specialty chemical industries seeking to produce vibrant and stable hues.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of acid dyes, direct dyes, and reactive dyes, particularly azo dyes.
• Textile Industry: Used in the manufacturing of dyes for coloring wool, silk, and nylon fibers.
• Paper Coloring: Employed in the production of dyes for specialty paper and packaging materials.
• Liquid Crystal Dyes (LCD): Serves as an intermediate for dyes used in electronic displays.
• Biological Staining: Potential use as an intermediate for certain histological stains.
• Chemical Research: Utilized as a building block in organic synthesis and pharmaceutical research.

Basic Information

Product Name	Sodium Hydrogen Aniline-2,4-Disulphonate
CAS No.	79873-41-9
Molecular Formula	C6H6NNaO6S2
Molecular Weight	275.23 g/mol
Synonyms	Aniline-2,4-disulfonic acid, monosodium salt; 2,4-Disulfoaniline sodium salt; Sodium 2,4-disulfoanilinate; 2-Amino-1,5-benzenedisulfonic acid monosodium salt; 4-Amino-1,3-benzenedisulfonic acid monosodium salt; Benzenamine, 2,4-disulfo-, monosodium salt; Sodium hydrogen 4-aminobenzene-1,3-disulphonate
EINECS	Contact for details

Quality Control

Our Sodium Hydrogen Aniline-2,4-Disulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance, meeting the specifications required for high-end industrial synthesis. Certificates of Analysis (COA) are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfate Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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