Description

Chromate(3-), 7-(aminohydroxyphenyl)azo-3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-2-naphthalenesulfonato(3-)3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-7-2-hydroxy-1-(phenylamino) is a complex, high-purity chromium-based azo dye intermediate. This compound is valued for its precise molecular structure, which provides excellent chelating properties and color fastness in demanding applications. It is primarily utilized by manufacturers in the production of specialized pigments, advanced textile dyes, and analytical reagents. The product, identified by CAS No. 118716-61-3, is supplied to meet the stringent requirements of industrial and research chemistry.

Application

• Specialized Pigment Manufacturing: As a key chromophore precursor for high-performance inorganic and organic pigments.
• Textile Dye Synthesis: For producing metal-complex dyes with enhanced wash and light fastness for synthetic and natural fibers.
• Analytical Chemistry Reagent: Used as a selective chelating agent in colorimetric assays and trace metal analysis.
• Catalyst and Ligand Preparation: Serves as a sophisticated ligand in coordination chemistry for catalytic systems.
• Functional Material Research: Employed in R&D for novel materials, including sensors and optical devices.
• Surface Treatment Formulations: Potential use in specialized coatings and surface modification processes.

Basic Information

Item	Details
Product Name	Chromate(3-), 7-(aminohydroxyphenyl)azo-3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-2-naphthalenesulfonato(3-)3-5-(aminosulfonyl)-2-(hydroxy-.kappa.O)phenylazo-.kappa.N1-4-(hydroxy-.kappa.O)-7-2-hydroxy-1-(phenylamino)
CAS No.	118716-61-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Chromium complex azo dye intermediate; 118716-61-3; Azo chromium complex; Chromate(3-) complex with azo and sulfonato ligands; Tris(azo-sulfonato) chromium complex; Metal-complex dye precursor; Chromium(III) azo dye intermediate; Textile dye intermediate CI (Contact for specific number)
EINECS	Contact for details

Quality Control

Our production of this chromium azo complex adheres to strict quality protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques including HPLC and spectroscopic methods to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, heavy metal content, and other critical parameters 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, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a low-humidity environment to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Chromium Content	Contact for details
Solubility	Soluble in specified solvents

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