Description

1-Amino-4-[(4-Chloro-3-Sulphophenyl)Amino]-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid is a high-purity, functionalized anthraquinone derivative, serving as a critical intermediate in the synthesis of advanced colorants. Its value lies in its precise molecular structure, which provides the chromophoric backbone and reactive sites necessary for creating vivid, stable dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop high-performance color products.

Application

• Primary Intermediate for Anthraquinone Dyes: A key building block in the synthesis of acid, disperse, and reactive dyes, particularly for shades of blue, green, and black.
• Textile Dyeing and Printing: Used to produce dyes that offer excellent color fastness, brightness, and wash resistance on nylon, wool, and silk fabrics.
• Inkjet and Digital Printing Inks: Serves as a precursor for pigments and dyes used in high-quality industrial and graphic arts inks.
• Functional Dyes for Plastics and Polymers: Employed in the coloration of engineering plastics and synthetic fibers where thermal stability is required.
• Research & Development: A valuable compound for academic and industrial R&D in organic synthesis, dye chemistry, and material science.
• Specialty Chemical Synthesis: Acts as an intermediate for the production of photoactive compounds and other functional chemicals.

Basic Information

Product Name	1-Amino-4-[(4-Chloro-3-Sulphophenyl)Amino]-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid
CAS No.	59969-87-8
Molecular Formula	C20H12ClN2O7S2
Molecular Weight	491.90 g/mol
Synonyms	1-Amino-4-[(4-chloro-3-sulfophenyl)amino]anthraquinone-2-sulfonic acid; 1-Amino-4-[(4-chloro-3-sulfophenyl)amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid; 2-Anthracenesulfonic acid, 1-amino-4-[(4-chloro-3-sulfophenyl)amino]-9,10-dihydro-9,10-dioxo-; Acid Blue 324 intermediate; C.I. 61525 intermediate; Anthraquinone dye intermediate; 4-Chloro-3-sulfoanilino-1-aminoanthraquinone-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 1-Amino-4-[(4-Chloro-3-Sulphophenyl)Amino]-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are 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 sealed when not in use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark blue to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (typical 97-99%)
Water Content	≤ 5.0%
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline water; sparingly soluble in organic solvents

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