Description

Sodium hydrogen -2-hydroxy-5-[[4-[[4-[(4-hydroxy-3-sulphonatophenyl)amino]phenyl](1-methyl-2-phenyl-1H-indol-3-yl)methylene]-2,5-cyclohexadien-1-ylidene]amino]benzenesulphonate is a high-purity, synthetic organic compound belonging to the class of complex sulfonated azo dyes and intermediates. This chemical is valued for its precise molecular structure, which provides excellent chromophoric properties and stability in demanding formulations. It serves as a critical key intermediate for advanced colorants and functional dyes used in research, analytical chemistry, and specialized industrial applications where consistent quality and performance are paramount.

Application

• Dye and Pigment Intermediate: A crucial precursor for synthesizing high-performance, water-soluble azo dyes and pigments.
• Analytical Reagents: Used in the formulation of specialized stains, indicators, and reagents for laboratory and diagnostic applications.
• Functional Material Synthesis: Serves as a building block for creating advanced materials with specific optical or electronic properties.
• Research & Development: Employed in chemical research for studying dye chemistry, photophysical properties, and molecular interactions.
• Specialty Inks: A potential component in the manufacture of specialty inks requiring specific color fastness and solubility characteristics.

Basic Information

Item	Details
Product Name	Sodium hydrogen -2-hydroxy-5-[[4-[[4-[(4-hydroxy-3-sulphonatophenyl)amino]phenyl](1-methyl-2-phenyl-1H-indol-3-yl)methylene]-2,5-cyclohexadien-1-ylidene]amino]benzenesulphonate
CAS No.	12219-30-6
Molecular Formula	C40H28N3NaO7S2
Molecular Weight	749.78 g/mol
Synonyms	Acid Blue 90; C.I. 42655; Sodium 5-[[4-[[4-[(4-hydroxy-3-sulfophenyl)amino]phenyl][1-methyl-2-phenyl-1H-indol-3-yl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-2-hydroxybenzenesulfonate; Benzenesulfonic acid, 5-[[4-[[4-[(4-hydroxy-3-sulfophenyl)amino]phenyl][1-methyl-2-phenyl-1H-indol-3-yl]methylene]-2,5-cyclohexadien-1-ylidene]amino]-2-hydroxy-, monosodium salt; C.I. Acid Blue 90; Wool Blue B; Supranol Blue BL
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent moisture absorption and degradation.

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)	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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