Description

Disodium 5-(Benzoylamino)-3-[(2,5-Dimethylphenyl)Azo]-4-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its molecular structure is engineered to provide excellent chromophore properties, making it a critical precursor for the synthesis of specialized dyes and pigments. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable supply for their production processes.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments used in textile coloration.
• Key component in the manufacturing of specialty inks for packaging, security, and digital printing applications.
• Used in the production of colorants for industrial coatings and plastics, providing vibrant and stable hues.
• Research and development of novel functional dyes for non-textile applications, including sensors and optical materials.
• Potential use as a biological stain or histochemical reagent in laboratory settings, subject to specific grade availability.

Basic Information

Product Name	Disodium 5-(Benzoylamino)-3-[(2,5-Dimethylphenyl)Azo]-4-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	81064-48-4
Molecular Formula	C31H23N3Na2O9S2
Molecular Weight	691.63 g/mol
Synonyms	5-(Benzoylamino)-3-[(2,5-dimethylphenyl)azo]-4-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt; C.I. 26360; Disodium 5-benzamido-3-(2,5-dimethylphenylazo)-4-hydroxy-2,7-naphthalenedisulfonate; Azo dye intermediate 81064-48-4; 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-[(2,5-dimethylphenyl)azo]-4-hydroxy-, disodium salt; Benzenesulfonic acid derivative 81064-48-4
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each 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 room temperature (15-25°C). Keep away from strong oxidizing agents. The product is light-sensitive and should be stored away from light to maintain stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Solubility (in Water)	Freely soluble

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