Description

2-[[6-[[4-[[6-(Benzoylamino)-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]Benzoic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its complex polycyclic structure and multiple functional groups. This compound is essential for synthesizing specialized dyes and pigments that require excellent lightfastness, thermal stability, and vibrant color properties. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Textile Dyeing: A key intermediate for the synthesis of high-grade, wash-fast azo dyes used on cotton, wool, and synthetic fibers.
• Ink Formulation: Used in the production of pigments for industrial inks, including those for packaging and security printing applications.
• Specialty Coatings: Serves as a precursor for colorants in coatings requiring specific chemical resistance and durability.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.
• Functional Dyes: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or liquid crystal displays (LCDs).

Basic Information

Item	Details
Product Name	2-[[6-[[4-[[6-(Benzoylamino)-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]Benzoic Acid, Sodium Salt
CAS No.	93805-62-0
Molecular Formula	C42H26N6Na2O12S2
Molecular Weight	912.80 g/mol
Synonyms	Benzoic acid, 2-[[6-[[4-[[6-(benzoylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-3-methylbenzoyl]amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-, sodium salt (1:2); C.I. 27290; Acid Red 337; Sodium 2-[(6-{[4-({6-[(benzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl}azo)-3-methylbenzoyl]amino}-1-hydroxy-3-sulphonato-2-naphthyl)azo]benzoate
EINECS	Contact for details

Quality Control

Our production of 2-[[6-[[4-[[6-(Benzoylamino)-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]Benzoic Acid, Sodium Salt adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical composition. Certificates of Analysis (COA) detailing key specifications are provided to guarantee product integrity and 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of 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	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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