Description

Potassium Sodium Bis[6-Amino-5-[[2-Hydroxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-1-Sulphonato(4-)]Cobaltate(5-) is a complex, water-soluble cobalt-based coordination compound, primarily utilized as a high-performance azo dye intermediate and colorant precursor. Its intricate molecular structure is engineered to deliver exceptional color strength and stability, making it a critical component for producing advanced pigments. This chemical is essential for manufacturers in the specialty dyes and pigments industry, particularly for applications requiring vibrant, durable colors with specific technical properties.

Application

• Precursor for Reactive and Direct Dyes: Serves as a key intermediate in the synthesis of high-quality azo dyes for textiles, leather, and paper.
• Specialty Pigment Manufacturing: Used in the production of complex inorganic colorants (CICs) and other advanced pigments for plastics, coatings, and inks.
• Analytical Chemistry Reagent: Can be employed as a metallochromic indicator or a complexing agent in specific titrimetric analyses.
• Research & Development: Utilized in academic and industrial R&D for studying coordination chemistry, dye-sensitized solar cells (DSSCs), and catalytic processes.
• Functional Material Synthesis: Acts as a building block for creating metal-organic frameworks (MOFs) or other functional materials with tailored optical properties.

Basic Information

Product Name	Potassium Sodium Bis[6-Amino-5-[[2-Hydroxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-1-Sulphonato(4-)]Cobaltate(5-)
CAS No.	72269-32-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Blue 221; Potassium sodium cobaltate complex; Bis(6-amino-5-((2-hydroxy-5-((2-sulfooxyethyl)sulfonyl)phenyl)azo)naphthalene-1-sulfonato)cobaltate(5-); Azo dye metal complex cobaltate; Reactive blue dye intermediate 72269-32-0; Cobalt complex of sulfonated azo dye
EINECS	Contact for details

Quality Control

Our production of this specialty chemical intermediate adheres to strict quality management systems. Every batch undergoes rigorous analytical testing to ensure consistency in composition, color value, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing assay, identity confirmation, and specific impurity limits is provided with each shipment to guarantee it meets your precise formulation requirements.

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 hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (Cobalt Content)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfate Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Completely soluble

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