Description

4-[(4-Amino-3-Bromo-9,10-Dihydro-9,10-Dioxo-1-Anthryl)Amino]Toluene-3-Sulphonic Acid CAS NO 4988-32-3 is a specialized anthraquinone derivative, a high-value intermediate prized for its functional chromophore and reactive amino/sulfonic acid groups. Its primary commercial value lies in its role as a key precursor for synthesizing high-performance dyes and pigments, particularly for demanding applications requiring specific color fastness and stability. This compound is essential for manufacturers in the colorant, specialty chemical, and advanced materials sectors seeking to develop products with enhanced properties.

Application

• Dye & Pigment Synthesis: A critical intermediate for producing high-grade anthraquinone-based dyes, including vat dyes, acid dyes, and disperse dyes.
• Textile Industry: Used in the manufacture of dyes for coloring natural and synthetic fibers, valued for their brightness and wash-fastness.
• Functional Colorants: Serves as a building block for creating specialized pigments used in inks, coatings, and plastics where color stability is paramount.
• Research & Development: Employed in academic and industrial R&D for exploring novel chromophores and advanced organic materials.
• Photographic Sensitizers: Potential application in the synthesis of compounds used in photographic and imaging technologies.
• Liquid Crystal Displays (LCDs): Can be utilized in the development of dichroic dyes for display applications.

Basic Information

Product Name	4-[(4-Amino-3-Bromo-9,10-Dihydro-9,10-Dioxo-1-Anthryl)Amino]Toluene-3-Sulphonic Acid
CAS No.	4988-32-3
Molecular Formula	C21H15BrN2O5S
Molecular Weight	487.33 g/mol
Synonyms	4-[(4-Amino-3-bromo-9,10-dihydro-9,10-dioxo-1-anthracenyl)amino]toluene-3-sulfonic acid; 1-Amino-4-(4-amino-3-bromoanthraquinon-1-ylamino)toluene-3-sulfonic acid; 3-Bromo-1,4-diaminoanthraquinone-2-sulfonic acid derivative; Anthraquinone dye intermediate 4988-32-3; 1,4-Bis(4-amino-3-methylphenylamino)anthraquinone-2-sulfonic acid bromo derivative; 4-Amino-3-bromo-1-(4-amino-2-methyl-5-sulfophenylamino)anthraquinone; Toluene-3-sulfonic acid, 4-[(4-amino-3-bromo-9,10-dihydro-9,10-dioxo-1-anthryl)amino]-; Bromoaminoanthraquinonylaminotoluenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 4-[(4-Amino-3-Bromo-9,10-Dihydro-9,10-Dioxo-1-Anthryl)Amino]Toluene-3-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent performance. Certificates of Analysis (COA) documenting all critical parameters are provided to guarantee traceability and compliance with your quality standards.

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 to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Typical 97-99%)
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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