Description

Disodium 6-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate is a high-purity, synthetic azo dye intermediate known for its excellent color strength and stability. This compound is essential for manufacturers requiring consistent and reliable chromophores for demanding applications. It is primarily utilized by producers of industrial dyes, pigments, and specialty colorants for textiles, inks, and plastics.

Application

• Primary intermediate for the synthesis of azo dyes and pigments, particularly red and orange shades.
• Key component in the production of textile dyes for cotton, nylon, and other fibers.
• Used in formulating industrial inks for packaging and printing applications.
• Manufacture of colorants for plastics and polymers to achieve specific hues.
• Potential use in the synthesis of specialty pigments for coatings and paints.
• Research and development of novel functional dyes with specific optical properties.

Basic Information

Item	Detail
Product Name	Disodium 6-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate
CAS No.	67875-17-6
Molecular Formula	C24H18N4Na2O8S2
Molecular Weight	600.52 g/mol
Synonyms	Acid Red 359; C.I. 18000; Disodium 6-[[4-[(4-ethoxyphenyl)azo]phenyl]azo]naphthalene-1,3-disulfonate; 6-[[4-[(4-Ethoxyphenyl)azo]phenyl]azo]-1,3-naphthalenedisulfonic acid disodium salt; Azo Dye Intermediate 67875-17-6; 1,3-Naphthalenedisulfonic acid, 6-[[4-[(4-ethoxyphenyl)azo]phenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 6-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Naphthalene-1,3-Disulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized and tested against established in-house specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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 room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown to dark red 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

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