Description

Disodium 4,4'-[(1,4-Dioxo-2-Butene-1,4-Diyl)Bis(Imino-4,1-Phenyleneimino)]Bis[1-Amino-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonate] is a high-purity, water-soluble anthraquinone derivative with a complex, functionalized structure. This compound is valued for its role as a key intermediate in the synthesis of specialized dyes and pigments, offering excellent chromophoric properties and chemical reactivity. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Dye Intermediate: A critical precursor for the synthesis of reactive, acid, and disperse dyes used in textile coloring.
• Pigment Manufacturing: Used in the production of high-grade organic pigments for inks, coatings, and plastics.
• Functional Dyes: Serves as a building block for dyes used in specialized applications such as laser marking, optical data storage, and liquid crystal displays (LCDs).
• Biochemical Staining: Potential use in developing histological stains or biological markers due to its chromogenic structure.
• Research & Development: Employed in academic and industrial R&D for exploring novel chromophores and photoactive materials.
• Analytical Chemistry: Can be utilized as a standard or reagent in chromatographic analysis and method development.

Basic Information

Product Name	Disodium 4,4'-[(1,4-Dioxo-2-Butene-1,4-Diyl)Bis(Imino-4,1-Phenyleneimino)]Bis[1-Amino-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonate]
CAS No.	71873-45-5
Molecular Formula	C44H26N4Na2O14S2
Molecular Weight	928.80 g/mol
Synonyms	Disodium 1-Amino-4-[4-[(1,4-dioxo-2-buten-1-yl)amino]phenylamino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate; Reactive Blue 221; C.I. 612045; Anthraquinone Blue Dye Intermediate; 1-Amino-4-[4-[(1,4-dioxo-2-buten-1-yl)amino]anilino]anthraquinone-2-sulfonic acid disodium salt; 4,4'-[(1,4-Dioxo-2-butene-1,4-diyl)bis(imino-4,1-phenyleneimino)]bis[1-amino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid] disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 4,4'-[(1,4-Dioxo-2-Butene-1,4-Diyl)Bis(Imino-4,1-Phenyleneimino)]Bis[1-Amino-9,10-Dihydro-9,10-Dioxoanthracene-2-Sulphonate] adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. The product is manufactured under a cGMP-compliant quality management system. Comprehensive testing, including HPLC for assay and related substances, is performed. A detailed Certificate of Analysis (COA) documenting identity, purity, and other critical parameters is provided with each shipment.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed when not in use to minimize exposure to atmospheric moisture and light.

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
Related Substances (HPLC)	Total impurities ≤ 3.0%
Sulfated Ash	≤ 0.5%

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