Description

1-Amino-4-(4-Amino-2-Sulphoanilino)-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid is a high-purity, anthraquinone-based intermediate essential for the synthesis of high-performance dyes and pigments. This compound matters for its role in producing vibrant, colorfast, and chemically stable dyes, particularly in the blue and green spectrum. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced coloring agents with superior light and wash fastness properties.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes used for coloring cotton, wool, and other cellulosic fibers.
• Manufacture of Disperse Dyes: Used in the production of disperse dyes for synthetic fibers such as polyester and nylon, offering excellent sublimation fastness.
• Specialty Pigment Production: Serves as a precursor for creating organic pigments with high tinting strength and durability for inks, plastics, and coatings.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores and studying dye-sensitized systems.
• Functional Dye Synthesis: Utilized in the creation of functional dyes for non-textile applications, including optical data storage and laser dyes.

Basic Information

Product Name	1-Amino-4-(4-Amino-2-Sulphoanilino)-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid
CAS No.	18791-01-0
Molecular Formula	C20H15N3O7S2
Molecular Weight	473.48 g/mol
Synonyms	1-Amino-4-[(4-amino-2-sulfophenyl)amino]-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid; 1-Amino-4-(4-amino-2-sulfoanilino)anthraquinone-2-sulfonic acid; C.I. Reactive Blue 19 Intermediate; Bromamine Acid derivative; 4-[(4-Amino-2-sulfophenyl)amino]-1-aminoanthraquinone-2-sulfonic acid; Reactive Blue 19 precursor; Anthraquinone Blue Intermediate; 1,4-Diaminoanthraquinone-2,5'-disulfonic acid derivative
EINECS	242-576-8

Quality Control

Our production of 1-Amino-4-(4-Amino-2-Sulphoanilino)-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for demanding industrial applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 oxidizing agents. Due to its sulfonic acid groups, the material may be hygroscopic; protect from excessive moisture to prevent caking or degradation.

Specification

Item	Specification
Appearance	Dark blue to violet 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
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility	Soluble in alkaline water; sparingly soluble in acidic water

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