Description

2-[[7-[(3-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-5-(Phenylazo)Benzoic Acid is a high-purity, complex azo dye intermediate with significant commercial importance. Its value lies in its ability to impart specific color properties and act as a key building block in the synthesis of advanced colorants. This product is essential for manufacturers in the dyes and pigments industry, particularly for producing specialized azo dyes used in textiles, inks, and other industrial applications requiring precise color characteristics.

Application

• Primary Intermediate for Azo Dyes: Serves as a critical precursor in the synthesis of high-performance, polyazo dyes for textiles and fabrics.
• Specialty Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics where specific color fastness and stability are required.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-color relationships in dye chemistry.
• Functional Dye Synthesis: Potential use in creating dyes for non-textile applications, such as sensitizers or functional materials.

Basic Information

Item	Detail
Product Name	2-[[7-[(3-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-5-(Phenylazo)Benzoic Acid
CAS No.	85750-23-8
Molecular Formula	C30H22N6O7S
Molecular Weight	610.60 g/mol
Synonyms	Acid Red 337; C.I. 17200; Benzoic acid, 2-[[7-[(3-aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-5-(2-phenyldiazenyl)-; 2-[[7-[(3-Aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthyl]azo]-5-(phenylazo)benzoic acid; 5-(Phenylazo)-2-[[7-[(3-aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthyl]azo]benzoic acid; Azo dye intermediate 85750-23-8
EINECS	Contact for details

Quality Control

Our production of 2-[[7-[(3-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-5-(Phenylazo)Benzoic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and purity. The product undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling and spectroscopic identification (IR, UV-Vis). A detailed Certificate of Analysis (COA) documenting purity, physical characteristics, and compliance with agreed specifications is provided with every shipment.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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