Description

Trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxy-5-methyl-4-sulphonatophenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methoxyphenyl)azo]naphthalene-2-sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing specific, high-performance dyes and pigments, offering excellent color properties and stability. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for producing vivid and durable colorants.

Application

• Primary intermediate for the synthesis of reactive and direct dyes used in textile dyeing and printing.
• Key component in the production of high-grade inks for digital and industrial printing applications.
• Used in the manufacture of pigments for coatings, plastics, and other colored materials.
• Employed in research and development of novel chromophores and functional dyes.
• Potential use as a colorimetric reagent or indicator in analytical chemistry applications.
• Serves as a specialty chemical intermediate for custom synthesis in the fine chemicals sector.

Basic Information

Item	Details
Product Name	Trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxy-5-methyl-4-sulphonatophenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methoxyphenyl)azo]naphthalene-2-sulphonate
CAS No.	67923-63-1
Molecular Formula	C37H24N6Na3O16S4
Molecular Weight	Contact for details
Synonyms	Acid Red 404; C.I. 18073; Trisodium 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-8-[[4-[(2-methoxyphenyl)azo]-5-sulfo-7-hydroxy-2-naphthalenyl]carbamoylamino]-1,3-naphthalenedisulfonate; Reactive Dye Intermediate; Azo Dye Intermediate CAS 67923-63-1
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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