Description

Sodium 1-Amino-9,10-Dihydro-9,10-Dioxo-4-o-Toluidinoanthracene-2-Sulphonate 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 is critical for manufacturers requiring precise color properties and consistent batch-to-batch performance for demanding applications. It is primarily utilized by the textile, ink, and specialty chemical industries for producing vibrant and stable colorants.

Application

• Primary intermediate in the synthesis of acid dyes and reactive dyes for textile fibers such as wool, silk, and nylon.
• Key precursor for manufacturing high-performance pigments and colorants used in inks, coatings, and plastics.
• Used in research and development for creating novel functional dyes with specific optical or electronic properties.
• Intermediate in the production of dyes for paper coloration and specialty printing applications.
• Potential use in the synthesis of biological stains and diagnostic reagents due to its chromophoric structure.

Basic Information

Item	Details
Product Name	Sodium 1-Amino-9,10-Dihydro-9,10-Dioxo-4-o-Toluidinoanthracene-2-Sulphonate
CAS No.	25492-67-5
Molecular Formula	C21H15N2NaO5S
Molecular Weight	430.41 g/mol
Synonyms	1-Amino-4-(o-toluidino)-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic Acid Sodium Salt; Sodium 1-Amino-4-(2-methylanilino)anthraquinone-2-sulfonate; Acid Blue 324 Intermediate; C.I. 62055; 1-Amino-4-(2-methylphenylamino)-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic Acid Sodium Salt; 2-Anthracenesulfonic Acid, 1-Amino-9,10-dihydro-4-[(2-methylphenyl)amino]-9,10-dioxo-, Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium 1-Amino-9,10-Dihydro-9,10-Dioxo-4-o-Toluidinoanthracene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications for use as a dye intermediate. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment 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 place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to prevent degradation and absorption of moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Solubility (1% in Water)	Complete, clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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