Description

Disperse Orange 31 is a synthetic organic dye belonging to the disperse dye class, widely recognized for its vibrant orange hue. It is valued for its excellent color fastness and dispersion properties, which are critical for achieving uniform and durable coloration on synthetic fibers. This product is essential for manufacturers in the textile and plastics industries seeking high-performance colorants for polyester, nylon, and acetate materials.

Application

• Primary dyeing of polyester fibers and fabrics for apparel and home textiles.
• Coloration of nylon and acetate materials in various textile applications.
• Mass pigmentation and spin dyeing of synthetic polymers and plastics.
• Used in the production of transfer printing papers for the textile industry.
• Potential applications in the coloration of engineering plastics for automotive and consumer goods.
• Research and development of new colored material formulations in industrial laboratories.

Basic Information

Product Name	Disperse Orange 31
CAS No.	61968-38-5
Molecular Formula	C18H14N4O2
Molecular Weight	318.33 g/mol
Synonyms	Disperse Orange 31; C.I. Disperse Orange 31; 1,4-Diamino-2,3-dicyanoanthraquinone; 2,3-Dicyano-1,4-diaminoanthraquinone; 1,4-Diaminoanthraquinone-2,3-dicarbonitrile; Disperse Orange G; Samaron Orange HFFG; Foron Orange S-R; C.I. 11119
EINECS	Contact for details

Quality Control

Our Disperse Orange 31 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including spectrophotometric analysis, chromatography, and physical property assessments, to meet industry-standard specifications. Certificates of Analysis (COA) detailing purity, strength, and other critical parameters 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). 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.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Dispersion Stability	Passes test
Particle Size	≤ 5.0 μm (Typical)

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