Description

Trisodium 7-[4-[4-[4-[(4-Aminobenzoyl)Amino]-2-Methyl-Phenyl]Diazenyl- 7-Sulfonato-Naphthalen-1-Yl]Diazenyl-2-Methyl-Phenyl]Diazenylnaphthale Ne-1,3-Disulfonate is a high-purity, water-soluble azo dye intermediate characterized by its complex poly-sulfonated structure. This compound is essential for synthesizing high-value, colorfast dyes and pigments with excellent wash and light fastness properties. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, durable colors.

Application

• Primary Intermediate for Azo Dyes: Key building block for the synthesis of high-performance direct, acid, and reactive dyes used in textile dyeing and printing.
• Inkjet Ink Formulations: Used in the production of pigments for industrial and commercial inkjet inks, providing sharp color definition and stability.
• Specialty Coatings and Paints: Imparts color and functional properties to advanced coatings for automotive, industrial, and decorative applications.
• Paper Coloring: Employed in the manufacturing of colored papers and paper products requiring specific hue and brightness.
• Biological Staining Reagents: Potential use as a precursor or component in histological stains for microscopy and diagnostic applications.
• Research & Development: Serves as a critical reagent in chemical research for developing new chromophores and functional materials.

Basic Information

Item	Detail
Product Name	Trisodium 7-[4-[4-[4-[(4-Aminobenzoyl)Amino]-2-Methyl-Phenyl]Diazenyl- 7-Sulfonato-Naphthalen-1-Yl]Diazenyl-2-Methyl-Phenyl]Diazenylnaphthale Ne-1,3-Disulfonate
CAS No.	65000-30-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Direct Yellow 142; Direct Yellow 142; Trisodium 4-amino-4'-[(7-sulfo-4-[(2-methyl-4-[(4-aminobenzoyl)amino]phenyl)diazenyl]-1-naphthyl)diazenyl]-3-methyl[1,1'-biphenyl]-3'-carboxylate 1,3-disulfonate; 65000-30-8; Direct Fast Yellow GC; Amanil Fast Yellow GC; Benzo Fast Yellow 3GL; Sirius Supra Yellow GC; Solar Flavine G; Solophenyl Flavine 7GLL
EINECS	Contact for details

Quality Control

Our production of Trisodium 7-[4-[4-[4-[(4-Aminobenzoyl)Amino]-2-Methyl-Phenyl]Diazenyl- 7-Sulfonato-Naphthalen-1-Yl]Diazenyl-2-Methyl-Phenyl]Diazenylnaphthale Ne-1,3-Disulfonate adheres to stringent quality management systems to ensure batch-to-batch consistency and reliability. The material undergoes rigorous analytical testing, including chromatography and spectrophotometry, to verify identity, purity, and performance characteristics. Certificates of Analysis (COA) documenting all critical specifications 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 after opening to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Yellow to Orange-Brown Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely Soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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