Description

Sodium 3-[(2,4-Diaminophenyl)Azo]-4-Hydroxy-5-Nitrobenzenesulphonate is a specialized azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing high-performance dyes and pigments, particularly for demanding applications requiring specific color fastness and stability. This compound is essential for manufacturers in the textile, leather, and specialty chemical industries seeking to produce vibrant, durable colors.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile dyeing and printing.
• Key precursor in the production of dyes for leather finishing and coloration.
• Used in the manufacture of specialized colorants for paper and packaging materials.
• Intermediate for research and development of novel functional dyes with specific optical properties.
• Potential use in the formulation of analytical reagents and biological stains for laboratory applications.
• Starting material for creating complex dyes used in inks and toners.

Basic Information

Product Name	Sodium 3-[(2,4-Diaminophenyl)Azo]-4-Hydroxy-5-Nitrobenzenesulphonate
CAS No.	6054-81-5
Molecular Formula	C12H9N5NaO6S
Molecular Weight	382.29 g/mol
Synonyms	3-[(2,4-Diaminophenyl)azo]-4-hydroxy-5-nitrobenzenesulfonic acid sodium salt; C.I. 37120; Sodium 2,4-diaminoazobenzene-4'-sulfonate; 4-Hydroxy-3-[(2,4-diaminophenyl)azo]-5-nitrobenzenesulfonic acid sodium salt; 2,4-Diaminoazobenzene-4'-sulfonic acid sodium salt; Benzenesulfonic acid, 3-[(2,4-diaminophenyl)azo]-4-hydroxy-5-nitro-, sodium salt (1:1)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality is verified through analytical methods including HPLC, UV-Vis, and titration to confirm identity, purity, and assay. Certificates of Analysis (COA) detailing all specifications 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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Solubility	Soluble in water
Heavy Metals	≤ 20 ppm

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