Description

C.I. Disperse Orange 139 is a high-performance, synthetic organic dye belonging to the disperse dye class, widely recognized for its vibrant orange hue. This product is essential for achieving excellent color fastness and deep, uniform shades on synthetic hydrophobic fibers. It is a critical component for manufacturers in the textile and plastics industries who require reliable, consistent, and high-quality coloration. The compound is identified by CAS No. 77907-26-7.

Application

This disperse dye is engineered for high-temperature dyeing processes, offering superior performance in key industrial applications:

• Polyester Fiber Dyeing: Primary application for dyeing polyester textiles and yarns, providing excellent wash and light fastness.
• Acetate and Nylon Coloration: Effective for dyeing secondary synthetic fibers like acetate and nylon, ensuring good color yield.
• Plastics and Polymer Mass Coloration: Used for coloring polycarbonate, polystyrene, and other thermoplastic materials during manufacturing.
• Inkjet Printing Inks: A key pigment for specialty inks used in digital textile printing.
• Automotive Interiors: Coloration of synthetic fabrics and plastics used in vehicle upholstery and trim.

Basic Information

Product Name	C.I. Disperse Orange 139
CAS No.	77907-26-7
Molecular Formula	C18H14ClN5O4
Molecular Weight	399.79 g/mol
Synonyms	Disperse Orange 139; Disperse Orange SE-5R; C.I. 11077; 2-[(4-((2-Chloro-4-nitrophenyl)azo)-N-(2-cyanoethyl)-3-oxobutanamido)phenyl]ethyl acetate; Samaron Orange HRS; Foron Orange RD-GLF; Dianix Orange UN-SE; Terasil Orange W-4RS
EINECS	Contact for details

Quality Control

Our C.I. Disperse Orange 139 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Every lot is tested against rigorous in-house specifications for critical parameters including color strength, shade, dispersion stability, and impurity profile. A Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with each shipment to guarantee it meets the demanding standards of the textile and polymer industries.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Orange to Reddish-Orange Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Pass Test
Particle Size	> 95% below 2 microns

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