Description

Cobaltate(5-), bis[4-[4-[[4-[[[3-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-4-hydroxyphenyl]sulfonyl]amino]phenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(4-)]-, pentasodium is a high-purity, complex metal-organic dye compound designed for demanding technical applications. This product is valued for its exceptional color strength and stability, making it a critical component in formulations where performance is non-negotiable. It is primarily sought by manufacturers in the specialty inks, high-performance pigments, and advanced material coating industries.

Application

• Specialty Ink Formulation: A key colorant for jet inks, security inks, and other high-value printing applications requiring precise hue and lightfastness.
• Industrial Pigments: Used in the manufacture of complex inorganic color pigments (CICPs) and other high-stability pigment systems.
• Advanced Material Coatings: Imparts color and functional properties to coatings for plastics, metals, and composites.
• Research & Development: Serves as a standard or intermediate in the synthesis of novel dyes and functional materials for academic and industrial R&D.
• Textile Dyeing (Specialty): Potential application in dyeing technical textiles where specific color properties and durability are required.

Basic Information

Product Name	Cobaltate(5-), bis[4-[4-[[4-[[[3-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]-4-hydroxyphenyl]sulfonyl]amino]phenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(4-)]-, pentasodium
CAS No.	75214-71-0
Molecular Formula	C68H44CoN16Na5O22S5
Molecular Weight	~1790.0 g/mol (Contact for details)
Synonyms	Pigment Blue; C.I. Pigment Blue 75; Cobalt Complex Blue Pigment; Sodium Bis(4-((4-((4-((3-((4,5-Dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl)azo)-4-hydroxyphenyl)sulfonyl)amino)phenyl)azo)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonato(4-))cobaltate(5-); Pentasodium Salt; Acid Blue 249 (related class); CI 77366
EINECS	Contact for details

Quality Control

Our production of this specialty dye adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Every lot is analyzed against stringent in-house specifications for color value, purity, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing assay, identification, and physical property tests 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark Blue to Bluish-Black Powder
Identification (IR)	Conforms to Standard
Assay (Dye Content)	Min. 95%
Moisture (Loss on Drying)	Max. 5.0%
Sulfated Ash	15.0 - 25.0%
Heavy Metals (as Pb)	Max. 20 ppm
Water Solubility	Soluble

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