Description

Disperse Orange 25 is a synthetic organic dye belonging to the azo class, widely used for its vibrant orange hue. Its primary value lies in its excellent dispersion properties and good fastness characteristics, making it a reliable colorant for synthetic fibers. This product is essential for manufacturers in the textile and plastics industries seeking consistent, high-performance coloration. The compound is identified by the CAS registry number 31482-56-1.

Application

• Primary dyeing of hydrophobic synthetic fibers such as polyester (PET) and acetate.
• Printing applications on polyester and nylon fabrics.
• Mass coloration (dope dyeing) of synthetic polymers and plastics.
• As a colorant component in the production of specialty inks and toners.
• Used in research and development laboratories for dye formulation and testing.
• Potential applications in non-textile areas such as colored filters or light-absorbing materials.

Basic Information

Product Name	Disperse Orange 25
CAS No.	31482-56-1
Molecular Formula	C12H10N4O2
Molecular Weight	242.23 g/mol
Synonyms	Disperse Orange 25; C.I. 11227; 1,4-Diamino-2-nitroanthraquinone; 2-Nitro-1,4-diaminoanthraquinone; Celliton Orange R; C.I. Disperse Orange 25; Samaron Orange HFFG; Foron Orange S-R; Dianix Orange R; Palanil Orange R
EINECS	250-654-3

Quality Control

Our Disperse Orange 25 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality parameters including color strength, shade, dispersion stability, and impurity profiles are rigorously tested against established internal specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with each shipment to guarantee it meets your application requirements.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to reddish-brown 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	Passes test
Particle Size	> 95% passes 80 mesh

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