Description

1-Amino-4-(3-Amino-4-Sodium-Sulfonoanilino)-2-Sodium Anthraquinone Sulfonate is a high-purity, water-soluble anthraquinone derivative valued for its vibrant color and functional properties. This compound is engineered to deliver consistent performance and batch-to-batch reliability for demanding industrial processes. It is primarily utilized by manufacturers in the textile, specialty chemical, and advanced material sectors where precise coloration and chemical functionality are critical.

Application

• Textile Dyeing & Printing: A key intermediate for producing high-quality, wash-fast blue and green reactive and acid dyes for natural and synthetic fibers.
• Functional Dye Synthesis: Serves as a crucial building block in the manufacture of dyes for specialized applications, including liquid crystal displays (LCDs) and optical data storage.
• Biochemical Staining: Used in the formulation of specific biological stains and histochemical dyes for laboratory and diagnostic applications.
• Catalyst & Ligand Synthesis: Acts as a precursor for complexing agents and ligands in catalytic systems and metal ion detection.
• Photographic & Imaging Chemicals: Employed in the synthesis of sensitizing dyes for photographic films and advanced imaging technologies.
• Research & Development: A vital chemical for academic and industrial R&D in organic synthesis, dye chemistry, and material science.

Basic Information

Product Name	1-Amino-4-(3-Amino-4-Sodium-Sulfonoanilino)-2-Sodium Anthraquinone Sulfonate
CAS No.	6691-06-1
Molecular Formula	C20H14N3Na2O7S2
Molecular Weight	534.44 g/mol
Synonyms	Acid Blue 25; C.I. 62055; Sodium 1-amino-4-[(3-amino-4-sulfonatophenyl)amino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate; 1-Amino-4-(3-amino-4-sulfonatoanilino)anthraquinone-2-sulfonic acid disodium salt; Anthraquinone Blue AS; C.I. Acid Blue 25; Disodium 1-amino-4-[(3-amino-4-sulfonatophenyl)amino]-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate
EINECS	229-710-0

Quality Control

Our production of 1-Amino-4-(3-Amino-4-Sodium-Sulfonoanilino)-2-Sodium Anthraquinone Sulfonate adheres to stringent quality management protocols to ensure product integrity and performance consistency. Every batch is analyzed using advanced techniques including HPLC and spectrophotometry to verify purity, identity, and chromaticity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Solubility in Water	Freely soluble

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