Description

Disperse Blue 77 is a high-performance anthraquinone-based disperse dye, identified by CAS NO 20241-76-3. It is valued for its excellent color fastness, thermal stability, and bright blue hue, making it a critical component for achieving deep, consistent coloration in synthetic materials. This product is essential for manufacturers in the textile and polymer industries who require reliable and vibrant dyes for hydrophobic fibers.

Application

• Primary dyeing of polyester (PET) fibers and fabrics.
• Coloration of polyamide (nylon) textiles.
• Mass coloration (dope dyeing) of synthetic polymers during the spinning process.
• Printing applications for synthetic textiles.
• Manufacture of colored plastics and engineering resins.
• Used in the production of masterbatches for consistent color distribution.

Basic Information

Product Name	Disperse Blue 77
CAS No.	20241-76-3
Molecular Formula	C₂₀H₁₇N₃O₅
Molecular Weight	379.37 g/mol
Synonyms	1,4-Bis(methylamino)anthraquinone; C.I. 60767; Disperse Blue 77; Solvent Blue 104; 1,4-Bis(methylamino)-9,10-anthracenedione; 1,4-Bis(methylamino)anthra-9,10-quinone; 9,10-Anthracenedione, 1,4-bis(methylamino)-
EINECS	243-654-1

Quality Control

Our Disperse Blue 77 is manufactured under a stringent quality management system. Every batch undergoes rigorous testing to ensure it meets high standards for color strength, purity, and particle size distribution. Certificates of Analysis (COA) detailing specifications such as shade, strength, and dispersion stability are available upon request 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). Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Pass Test

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