Description

4-[[9,10-Dihydro-4-(Methylamino)-9,10-Dioxo-1-Anthryl]Amino]Toluene-3-Sulphonic Acid is a specialized anthraquinone derivative valued for its role as a key intermediate in the synthesis of high-performance dyes and pigments. Its molecular structure, featuring both anthraquinone and sulphonic acid groups, provides excellent chromophoric properties and solubility characteristics. This compound is essential for manufacturers in the colorant industry seeking to produce vibrant, lightfast, and chemically stable dyes for textiles, inks, and advanced materials.

Application

• Dye & Pigment Intermediate: A critical building block for synthesizing anthraquinone-based dyes, including disperse, acid, and reactive dyes.
• Textile Colorants: Used in the production of dyes for coloring synthetic fibers like polyester and nylon, offering good wash and light fastness.
• Specialty Inks: Serves as a precursor for pigments used in high-quality printing inks, including those for packaging and security applications.
• Functional Materials: Potential intermediate in the development of organic semiconductors, photoconductors, or electrochromic materials due to its conjugated anthraquinone system.
• Research & Development: Utilized in chemical research for exploring new chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Product Name	4-[[9,10-Dihydro-4-(Methylamino)-9,10-Dioxo-1-Anthryl]Amino]Toluene-3-Sulphonic Acid
CAS No.	67893-47-4
Molecular Formula	C22H18N2O5S
Molecular Weight	422.45 g/mol
Synonyms	1-Amino-4-(methylamino)-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid; 4-[(4-Methylamino-9,10-dioxo-9,10-dihydro-1-anthryl)amino]toluene-3-sulfonic acid; 1-Amino-4-(methylamino)anthraquinone-2-sulfonic acid; Anthraquinone derivative 67893-47-4; 2-Sulfo-4-(methylamino)-1-aminoanthraquinone; 4-(Methylamino)-1-aminoanthraquinone-2-sulfonic acid; C.I. Disperse Blue 291 intermediate; CAS 67893-47-4
EINECS	Contact for details

Quality Control

Our production of 4-[[9,10-Dihydro-4-(Methylamino)-9,10-Dioxo-1-Anthryl]Amino]Toluene-3-Sulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet precise customer specifications. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with every 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). The product is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (HPLC Area %)	≥ 97.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals	≤ 20 ppm

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