Description

4,4'-[[(9,10-Dihydro-9,10-Dioxoanthracene)-1,4-Diyl]Diimino]Bis[3-Ethyl-5-Methylbenzenesulfonic Acid]Disodium Salt is a high-purity, water-soluble anthraquinone derivative valued for its strong chromophoric and functional properties. This compound is essential for applications requiring precise color development, chemical reactivity, and consistent performance in demanding formulations. It is primarily sought by manufacturers in the dye and pigment, specialty chemical, and advanced material synthesis industries.

Application

• As a key intermediate in the synthesis of high-performance anthraquinone dyes and pigments for textiles and plastics.
• In the production of functional dyes for liquid crystal displays (LCDs) and other optoelectronic applications.
• As a specialized reagent or building block in organic synthesis and pharmaceutical research.
• Potential use in the formulation of analytical reagents and indicators for laboratory and industrial testing.
• In the development of specialty inks and coatings requiring specific light-fastness and chemical stability.
• As a component in research focused on photoactive materials and energy-related technologies.

Basic Information

Product Name	4,4'-[[(9,10-Dihydro-9,10-Dioxoanthracene)-1,4-Diyl]Diimino]Bis[3-Ethyl-5-Methylbenzenesulfonic Acid]Disodium Salt
CAS No.	72749-77-0
Molecular Formula	C36H30N2Na2O10S2
Molecular Weight	752.73 g/mol
Synonyms	1,4-Bis[(4-ethyl-6-methyl-3-sulfophenyl)amino]-9,10-anthraquinone disodium salt; Acid Blue 324; C.I. 62125; Disodium 4,4'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis(3-ethyl-5-methylbenzenesulfonate); Anthraquinone Blue 324; 1,4-Bis[(4-ethyl-6-methyl-m-sulfophenyl)amino]anthraquinone disodium salt
EINECS	Contact for details

Quality Control

Our production of 4,4'-[[(9,10-Dihydro-9,10-Dioxoanthracene)-1,4-Diyl]Diimino]Bis[3-Ethyl-5-Methylbenzenesulfonic Acid]Disodium Salt adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is subjected to comprehensive analytical testing, including HPLC, spectroscopy, and wet chemistry methods. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed 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%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
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.