Description

Disperse Red 143 is a high-performance synthetic dye belonging to the disperse dye class, primarily used for coloring synthetic fibers. This product matters for its excellent color fastness, bright hue, and strong affinity for hydrophobic materials like polyester and acetate. It is a critical component for textile manufacturers, dye houses, and chemical suppliers serving the global synthetic fabric industry. The compound is identified by CAS No. 71767-66-3.

Application

• Polyester Fabric Dyeing: Primary application for achieving vibrant red shades with good wash and light fastness.
• Acetate and Triacetate Fiber Coloring: Effective for dyeing cellulose acetate fibers used in apparel and linings.
• Nylon Dyeing: Suitable for coloring polyamide fibers, often used in blends.
• Plastics Coloring: Used as a colorant for certain thermoplastic polymers during mass coloration.
• Ink Formulation: A pigment source for specialized inks in non-paper substrates.
• Automotive Textiles: For dyeing polyester fabrics used in vehicle interiors requiring color stability.

Basic Information

Product Name	Disperse Red 143
CAS No.	71767-66-3
Molecular Formula	C20H17N5O4
Molecular Weight	391.38 g/mol
Synonyms	Disperse Red 143; C.I. Disperse Red 143; 1-Amino-4-hydroxy-2-phenoxy-9,10-anthracenedione; 9,10-Anthracenedione, 1-amino-4-hydroxy-2-phenoxy-; Disperse Red SE-4B; Samaron Red F3BS; Foron Red S-3GFL; Intrasil Red 3B-FS
EINECS	Contact for details

Quality Control

Our Disperse Red 143 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing including purity assay, shade strength, and fastness properties. A Certificate of Analysis (COA) documenting key parameters 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). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Passes test

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