Description

Sodium 4-[[9,10-Dihydro-9,10-Dioxo-4-(p-Tolylamino)-1-Anthryl]Amino]Toluene-3-Sulphonate is a high-purity, water-soluble anthraquinone derivative dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing vibrant and stable colorants, particularly for high-performance applications requiring excellent lightfastness and chemical resistance. It is primarily needed by manufacturers in the specialty dyes and pigments, textile, and advanced materials sectors.

Application

• Key Intermediate for Anthraquinone Dyes: Serves as a critical building block in the synthesis of high-value disperse dyes and reactive dyes.
• Textile Coloring: Used in the production of dyes for polyester, nylon, and acetate fibers, offering excellent wash and light fastness.
• Specialty Pigments: Employed in the manufacturing of pigments for plastics, coatings, and inks where color stability is paramount.
• Functional Dyes: Potential applications in the development of dyes for liquid crystal displays (LCDs) and other electronic materials.
• Research & Development: Utilized in academic and industrial R&D for exploring novel chromophores and advanced colorant systems.
• Fine Chemical Synthesis: Acts as a specialized intermediate in custom organic synthesis for pharmaceutical and agrochemical research.

Basic Information

Item	Detail
Product Name	Sodium 4-[[9,10-Dihydro-9,10-Dioxo-4-(p-Tolylamino)-1-Anthryl]Amino]Toluene-3-Sulphonate
CAS No.	71195-66-9
Molecular Formula	C28H21N2NaO5S
Molecular Weight	520.53 g/mol
Synonyms	1-Amino-4-(p-tolylamino)anthraquinone-2-sulfonic acid sodium salt; Sodium 1-amino-4-(4-methylanilino)anthraquinone-2-sulfonate; C.I. Disperse Blue 73 (sulfonated intermediate); 4-[[9,10-Dihydro-9,10-dioxo-4-[(4-methylphenyl)amino]-1-anthracenyl]amino]benzenesulfonic acid sodium salt; 1-Amino-4-(4-methylphenylamino)anthraquinone-2-sulfonic acid sodium salt; Sodium 1-amino-4-(p-toluidino)anthraquinone-2-sulfonate
EINECS	Contact for details

Quality Control

Our production of Sodium 4-[[9,10-Dihydro-9,10-Dioxo-4-(p-Tolylamino)-1-Anthryl]Amino]Toluene-3-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reliability. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment.

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 degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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