Description

Disodium 2-Methyl-4-[[4-[[4-[(3-Tolyl)Amino]Phenyl][4-[(3-Methyl-4-Sulphonatophenyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Amino]Benzenesulphonate is a high-purity, water-soluble anionic dye intermediate. This compound is valued for its role as a key precursor in the synthesis of specialized dyes and pigments, offering excellent color strength and stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colorants.

Application

• Textile Dyeing: As a critical intermediate for producing acid dyes and reactive dyes used on nylon, wool, and silk fibers.
• Ink Formulation: Used in the synthesis of pigments for high-performance inks, including those for digital textile printing.
• Specialty Coatings: Serves as a precursor for colorants in industrial and automotive coatings requiring specific hue and lightfastness.
• Paper Coloring: Intermediate in the manufacture of dyes for high-quality paper and packaging products.
• Leather Finishing: Used in the production of dyes for coloring leather goods.
• Research & Development: A valuable chemical for R&D laboratories developing new chromophores and functional dyes.

Basic Information

Product Name	Disodium 2-Methyl-4-[[4-[[4-[(3-Tolyl)Amino]Phenyl][4-[(3-Methyl-4-Sulphonatophenyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Amino]Benzenesulphonate
CAS No.	95873-57-7
Molecular Formula	C48H38N4Na2O6S2
Molecular Weight	868.93 g/mol
Synonyms	Acid Blue 324 (C.I. 61515); Disodium 2-methyl-4-({4-[(E)-{4-[(3-methylphenyl)amino]phenyl}{4-[(3-methyl-4-sulfonatophenyl)amino]phenyl}methylidene]cyclohexa-2,5-dien-1-ylidene}amino)benzenesulfonate; Benzenesulfonic acid, 2-methyl-4-[[4-[[4-[(3-methylphenyl)amino]phenyl][4-[(3-methyl-4-sulfophenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-, disodium salt; C.I. 61515; Acid Blue 324, disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 2-Methyl-4-[[4-[[4-[(3-Tolyl)Amino]Phenyl][4-[(3-Methyl-4-Sulphonatophenyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Amino]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting all critical parameters 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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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