Description

1-Amino-9,10-Dihydro-9,10-Dioxo-4-p-Toluidinoanthracene-2-Sulphonic Acid is a specialized anthraquinone derivative, valued for its role as a key intermediate in the synthesis of high-performance colorants. This compound matters for its ability to impart specific chromophoric properties, enabling the production of dyes with excellent color fastness and stability. It is primarily needed by manufacturers in the dye and pigment industries, particularly for creating specialized disperse, vat, or reactive dyes used in textiles, inks, and advanced materials.

Application

• Primary Intermediate for Dye Synthesis: A crucial building block in the manufacture of anthraquinone-based dyes and pigments.
• Textile Dyeing: Used in the production of dyes for synthetic fibers like polyester and nylon, offering good wash and light fastness.
• Specialty Inks: Serves as a precursor for colorants used in high-quality printing inks and toners.
• Functional Colorants: Potential use in the development of dyes for liquid crystal displays (LCDs) and other optoelectronic applications.
• Research & Development: Employed in academic and industrial R&D for exploring new chromophores and organic semiconductor materials.
• Analytical Chemistry: May be used as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Product Name	1-Amino-9,10-Dihydro-9,10-Dioxo-4-p-Toluidinoanthracene-2-Sulphonic Acid
CAS No.	25912-94-1
Molecular Formula	C21H16N2O5S
Molecular Weight	408.43 g/mol
Synonyms	1-Amino-4-(p-toluidino)anthraquinone-2-sulfonic Acid; 4-(4-Methylanilino)-1-aminoanthraquinone-2-sulfonic Acid; 1-Amino-4-(4-methylphenylamino)-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic Acid; 1-Amino-4-(p-tolylamino)anthraquinone-2-sulfonic Acid; Disperse Blue Dye Intermediate; Anthraquinone Sulfonic Acid Derivative; CI 62055 (related); Contact for EINECS details.

Quality Control

Our production of 1-Amino-9,10-Dihydro-9,10-Dioxo-4-p-Toluidinoanthracene-2-Sulphonic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and purity suitable for industrial synthesis. Each lot undergoes rigorous analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all relevant specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep away from strong acids and incompatible organic solvents. The container should be kept tightly sealed 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%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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