Description

Disodium 5-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]Salicylate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing reactive and direct dyes, particularly those requiring bright, stable shades in the orange to red spectrum. This compound is essential for manufacturers in the textile, leather, and specialty ink industries seeking to produce high-performance colorants with excellent fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Serves as a critical building block in the synthesis of reactive dyes for cotton, viscose, and other cellulosic fibers.
• Direct Dye Production: Used in manufacturing direct dyes for paper coloring and textile applications where high water solubility is advantageous.
• Leather Dyeing: Employed in the production of dyes for leather finishing, providing good penetration and color yield.
• Specialty Ink Formulations: Acts as a colorant intermediate in the manufacture of inks for jet printing and other specialized applications.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.
• Functional Dye Synthesis: A potential intermediate for creating dyes with specific functional properties for non-textile uses.

Basic Information

Product Name	Disodium 5-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]Salicylate
CAS No.	6492-66-6
Molecular Formula	C33H24N5Na2O10S
Molecular Weight	728.61 g/mol
Synonyms	Disodium 5-[(4-{[6-[(4-Amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo}-3-methylbenzoyl)amino]salicylate; C.I. Reactive Orange 13 Intermediate; Azo Dye Intermediate 6492-66-6; 5-[[4-[[6-[(4-Amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3-methylbenzoyl]amino]salicylic acid disodium salt; Benzoic acid, 5-[[4-[[6-[(4-amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-3-methylbenzoyl]amino]-2-hydroxy-, disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 5-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3-Methylbenzoyl]Amino]Salicylate is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, composition, and performance as a dye intermediate. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and solubility. Our quality commitment supports your need for reliable and reproducible results in downstream synthesis.

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 strong oxidizing agents. Due to its organic salt nature, the material should be protected from excessive moisture to prevent caking.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility (in Water)	Freely soluble
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.