Description

5-[[4-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sulfonaphthalen-2-Yl]Azo]-3-Methylbenzoyl]Amino]Phenyl]Azo]-2-Hydroxybenzoic Acid is a high-purity, complex azo dye intermediate essential for producing vivid and stable colorants. Its value lies in its sophisticated molecular structure, which provides excellent chromophore properties and binding affinity for specialized dye synthesis. This compound is critically needed by manufacturers in the textile, ink, and specialty polymer industries for developing advanced, high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-grade, complex azo dyes for textiles and fabrics.
• Specialty Ink Formulation: Used in the production of colorants for high-performance printing inks, including inks for packaging and security applications.
• Functional Pigment Synthesis: Serves as a precursor for creating pigments with enhanced lightfastness and thermal stability for plastics and coatings.
• Research & Development: A valuable compound for R&D chemists exploring novel chromophores and dye-sensitized materials.
• Analytical Chemistry: Can be utilized as a reagent or standard in chromatographic analysis and method development for dye-related compounds.

Basic Information

Product Name	5-[[4-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sulfonaphthalen-2-Yl]Azo]-3-Methylbenzoyl]Amino]Phenyl]Azo]-2-Hydroxybenzoic Acid
CAS No.	642475-40-9
Molecular Formula	C39H29N7O8S
Molecular Weight	755.76 g/mol
Synonyms	Benzoic acid, 5-[[4-[[4-[[6-[(4-amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-3-methylbenzoyl]amino]phenyl]azo]-2-hydroxy-; 642475-40-9; Azo dye intermediate CAS 642475-40-9; Complex sulfonated azo compound; 2-Hydroxy-5-[(4-{[4-({6-[(4-amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfonaphthalen-2-yl}azo)-3-methylbenzoyl]amino}phenyl)azo]benzoic acid
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through comprehensive analytical techniques including HPLC, FT-IR, and elemental analysis. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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 a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed to protect the contents from moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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