Description

2-[[[4-Hydroxy-3-[[2-(Phenylamino)-1-Naphthyl]Azo]Phenyl]Sulphonyl]Amino]Benzoic Acid is a specialized azo dye intermediate with a complex molecular structure, offering unique chromophoric and functional properties. Its primary value lies in its role as a key precursor for synthesizing high-performance, color-fast dyes and pigments used in demanding industrial applications. This compound is essential for manufacturers and R&D laboratories in the textile, ink, and specialty chemical sectors seeking to develop advanced coloring agents.

Application

• Primary intermediate for the synthesis of high-grade azo dyes and pigments.
• Key component in the production of dyes for textile fibers, including nylon, polyester, and acetate.
• Used in the formulation of specialized printing inks for packaging and security applications.
• Research and development of novel functional dyes for optical and electronic applications.
• Potential use as a colorant or intermediate in the manufacture of industrial coatings.
• Starting material for creating dyes used in leather and paper coloration.

Basic Information

Product Name	2-[[[4-Hydroxy-3-[[2-(Phenylamino)-1-Naphthyl]Azo]Phenyl]Sulphonyl]Amino]Benzoic Acid
CAS No.	79817-64-4
Molecular Formula	C29H22N4O5S
Molecular Weight	538.58 g/mol
Synonyms	Benzoic acid, 2-[[[4-hydroxy-3-[[2-(phenylamino)-1-naphthalenyl]azo]phenyl]sulfonyl]amino]-; 2-({[4-Hydroxy-3-({2-[(phenylamino)naphthalen-1-yl]azo}phenyl)sulfonyl]amino})benzoic acid; Azo dye intermediate 79817-64-4; 2-[[[4-Hydroxy-3-[[2-(anilino)-1-naphthyl]azo]phenyl]sulfonyl]amino]benzoic acid; 2-({[3-({2-[(Phenylamino)-1-naphthyl]azo}-4-hydroxyphenyl)sulfonyl]amino})benzoic acid
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using modern analytical techniques, including HPLC and spectroscopic methods, to verify identity and assay. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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