Description

2,2'-[Iminobis[(9,10-Dihydro-9,10-Dioxoanthracene-3,1-Diyl)Imino]]Bis[5-Methylbenzenesulfonic Acid] is a high-purity, functionalized anthraquinone derivative valued for its role as a key intermediate in the synthesis of specialized dyes and pigments. Its molecular structure, featuring sulfonic acid groups, imparts excellent water solubility and reactivity, making it crucial for producing colorants with enhanced properties. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced, high-performance coloring agents.

Application

• Primary Intermediate for Anthraquinone Dyes: Serves as a critical building block in the synthesis of acid dyes, disperse dyes, and reactive dyes for textiles.
• Specialty Pigment Manufacturing: Used in the production of high-grade organic pigments for inks, coatings, and plastics.
• Functional Dye Synthesis: Key precursor for creating dyes with specific optical properties for non-textile applications.
• Research & Development: Employed in chemical R&D for developing novel chromophores and photoactive materials.
• Analytical Chemistry: May be used as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Product Name	2,2'-[Iminobis[(9,10-Dihydro-9,10-Dioxoanthracene-3,1-Diyl)Imino]]Bis[5-Methylbenzenesulfonic Acid]
CAS No.	6358-61-8
Molecular Formula	C44H30N4O10S2
Molecular Weight	838.86 g/mol
Synonyms	2,2'-[Iminobis(9,10-dihydro-9,10-dioxo-1,3-anthracenediyl)imino]bis(5-methylbenzenesulfonic acid); 4,4'-[(9,10-Dihydro-9,10-dioxo-1,3-anthracenediyl)imino]bis[5-methylbenzenesulfonic acid]; 1,3-Bis[(4-sulfo-2-methylphenyl)amino]anthraquinone; Acid Blue 324 intermediate; Anthraquinone disulfonic acid derivative; C.I. 61520 intermediate
EINECS	228-778-5

Quality Control

Our production of 2,2'-[Iminobis[(9,10-Dihydro-9,10-Dioxoanthracene-3,1-Diyl)Imino]]Bis[5-Methylbenzenesulfonic Acid] adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications, including identity, assay, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every 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, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
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.