Description

Disodium 5-(Benzoylamino)-3-[[2-(2-Cyclohexylphenoxy)Phenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, synthetic organic dye intermediate belonging to the azo-naphthalene sulphonate class. This compound is valued for its ability to impart specific color properties and functional characteristics in advanced material formulations. It is primarily utilized by manufacturers in the pigments, inks, and specialty coatings industries seeking consistent and reliable performance.

Application

• Primary Intermediate for High-Performance Pigments: A key precursor in the synthesis of complex organic pigments used in automotive paints, industrial coatings, and plastics.
• Specialty Ink Formulations: Used in the production of inks for security printing, packaging, and high-quality digital printing applications.
• Functional Dye for Advanced Materials: Imparts color and can be engineered for specific light-fastness and chemical resistance in technical textiles and polymers.
• Research & Development: Serves as a critical building block in chemical R&D for developing new colorants and functional dyes with tailored properties.
• Analytical Chemistry Reagent: May be employed as a colorimetric reagent or a standard in analytical methods due to its defined structure.

Basic Information

Product Name	Disodium 5-(Benzoylamino)-3-[[2-(2-Cyclohexylphenoxy)Phenyl]Azo]-4-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	72828-83-2
Molecular Formula	C35H29N3Na2O9S2
Molecular Weight	753.72 g/mol
Synonyms	5-(Benzoylamino)-3-[[2-(2-cyclohexylphenoxy)phenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt; C.I. Solvent Yellow 163; Azo dye intermediate 72828-83-2; Disodium 5-benzamido-3-[2-(2-cyclohexylphenoxy)phenyl]azo-4-hydroxy-2,7-naphthalenedisulphonate; 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-[[2-(2-cyclohexylphenoxy)phenyl]azo]-4-hydroxy-, disodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques including HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance processes.

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 after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear, orange solution

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