Description

Disperse Orange 33 is a synthetic organic dye belonging to the disperse azo dye class, identified by CAS NO 61867-93-4. It is valued for its bright orange hue and excellent fastness properties, making it a critical component for achieving vibrant and durable coloration. This product is primarily needed by manufacturers in the textile and polymer industries for dyeing synthetic fibers such as polyester, acetate, and nylon.

Application

• Primary dyeing of polyester fibers and fabrics.
• Coloration of cellulose acetate and triacetate textiles.
• Dyeing of nylon and polyamide-based materials.
• Mass coloration of plastics and synthetic polymers.
• Production of colored masterbatches for synthetic fibers.
• Used in combination with other disperse dyes to create a wide color spectrum.

Basic Information

Product Name	Disperse Orange 33
CAS No.	61867-93-4
Molecular Formula	C12H10N4O2
Molecular Weight	242.23 g/mol
Synonyms	Disperse Orange 33; C.I. 11119; 1,4-Diamino-2-nitroanthraquinone; 1,4-Bis(ethylamino)anthraquinone; 1,4-Bis(ethylamino)-9,10-anthracenedione; Disperse Orange R; Samaron Orange HFFG; Foron Orange S-RL
EINECS	Contact for details

Quality Control

Our Disperse Orange 33 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, and dispersion stability. A Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with every shipment to guarantee compliance with your technical 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. The product is light-sensitive and should be stored away from direct light exposure.

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	> 95% passes 80 mesh

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