Description

2-[[(9,10-Dihydro-4-Hydroxy-9,10-Dioxoanthracen)-1-Yl]Amino]Benzenesulfonic Acid Sodium Salt is a high-purity, water-soluble anthraquinone derivative valued for its role as a key intermediate in the synthesis of specialized dyes and pigments. This compound matters for its ability to impart specific color properties and functional characteristics in advanced material applications. It is primarily needed by manufacturers in the dye and pigment industry, as well as by research and development laboratories focusing on functional organic materials and chemical synthesis.

Application

• Dye Intermediate: A crucial building block for the synthesis of acid dyes, reactive dyes, and disperse dyes used in textile coloring.
• Pigment Manufacturing: Serves as a precursor in the production of high-performance organic pigments for inks, coatings, and plastics.
• Functional Material Research: Used in R&D for developing novel materials with specific optical or electronic properties.
• Chemical Synthesis: Employed as a specialized intermediate in fine chemical and pharmaceutical synthesis where anthraquinone structures are required.
• Analytical Chemistry: Can be utilized as a standard or reagent in chromatographic analysis and method development.

Basic Information

Product Name	2-[[(9,10-Dihydro-4-Hydroxy-9,10-Dioxoanthracen)-1-Yl]Amino]Benzenesulfonic Acid Sodium Salt
CAS No.	71130-52-4
Molecular Formula	C20H12NNaO6S
Molecular Weight	417.37 g/mol
Synonyms	1-Amino-4-(phenylamino)anthraquinone-2-sulfonic acid sodium salt; Sodium 1-amino-4-(phenylamino)anthraquinone-2-sulfonate; 1-Amino-4-anilinoanthraquinone-2-sulfonic acid sodium salt; Acid Blue 25 precursor; C.I. 62055 sodium salt; 4-[(4-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino]benzenesulfonic acid sodium salt; Anthraquinone dye intermediate AS
EINECS	Contact for details

Quality Control

Our 2-[[(9,10-Dihydro-4-Hydroxy-9,10-Dioxoanthracen)-1-Yl]Amino]Benzenesulfonic Acid Sodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance. Certificates of Analysis (COA) documenting identity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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 incompatible materials. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (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.