Description

Chromate(3-), [2-[[[5-[(2-chloro-5-sulfophenyl)azo]-2-hydroxyphenyl] methylene]amino]benzoato (3-)][2-hydroxy-3-[[(2-hydroxyphenyl)methylene]amino]-5-nitrobenzenesulfonato(3-)]-, trisodium is a complex, water-soluble chromium azo dye compound. This product is valued for its ability to provide specific color properties and metal-complexing characteristics in demanding industrial applications. It is primarily required by manufacturers in the pigments, inks, and specialty coatings sectors, where consistent color performance and stability are critical.

Application

• Primary use as a colorant for industrial pigments and specialty paints.
• Formulation component in high-performance printing inks requiring metal-complex dye stability.
• Manufacturing of colored polymers and plastics where heat and light fastness are important.
• Potential use in the coloration of textile fibers and other substrates compatible with metal-complex dyes.
• Research and development of novel functional materials leveraging its specific coordination chemistry.

Basic Information

Product Name	Chromate(3-), [2-[[[5-[(2-chloro-5-sulfophenyl)azo]-2-hydroxyphenyl] methylene]amino]benzoato (3-)][2-hydroxy-3-[[(2-hydroxyphenyl)methylene]amino]-5-nitrobenzenesulfonato(3-)]-, trisodium
CAS No.	64611-72-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Trisodium Chromium Azo Complex Dye; C.I. Mordant Black; Chromium Complex Black Dye; Azo Chromium Complex; Mordant Dye Black; Chromium(3+) Azo Dye Salt; [2-[[[5-[(2-Chloro-5-sulfophenyl)azo]-2-hydroxyphenyl]methylene]amino]benzoato(3-)][2-hydroxy-3-[[(2-hydroxyphenyl)methylene]amino]-5-nitrobenzenesulfonato(3-)]chromate(3-) trisodium
EINECS	Contact for details

Quality Control

Our production of this chromium complex dye adheres to strict quality management systems to ensure batch-to-batch consistency in color strength and chemical composition. Every lot is analyzed for key parameters including identity, purity, and heavy metal content. A Certificate of Analysis (COA) detailing these results is provided with each shipment to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (Chromium Content)	Contact for details
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Completely soluble

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