Description

Disperse Brown 4 is a synthetic organic dye belonging to the disperse dye class, widely recognized for its application in hydrophobic textile fibers. Its primary value lies in providing a durable and vibrant brown coloration with excellent fastness properties, particularly on polyester and acetate materials. This product is essential for manufacturers in the textile and synthetic fiber industries seeking consistent, high-quality dyeing results for apparel, home furnishings, and technical fabrics.

Application

• Primary dyeing of polyester fibers and fabrics.
• Dyeing of cellulose acetate and triacetate materials.
• Coloration of nylon and other synthetic fibers in specific formulations.
• Used in the production of colored polyester yarns for textiles.
• Application in the dyeing of polyester-cotton blend fabrics.
• Potential use in the mass coloration of plastics and polymers.
• Employed in laboratory research and development for new dye formulations.

Basic Information

Product Name	Disperse Brown 4
CAS No.	12223-16-4
Molecular Formula	C₁₈H₁₄N₄O₅
Molecular Weight	366.33 g/mol
Synonyms	Disperse Brown 4; C.I. 11085; 1,4-Diamino-2,3-dihydroanthraquinone; 1,4-Bis(methylamino)anthraquinone; Celliton Brown 4R; C.I. Disperse Brown 4; Samaron Brown HRS; Foron Brown S-3RFL
EINECS	Contact for details

Quality Control

Our Disperse Brown 4 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against established specifications for critical parameters including color strength, shade, dispersion stability, and fastness properties. A Certificate of Analysis (COA) detailing these results 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 strong oxidizing agents and incompatible materials. The container should be kept tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Dispersion Stability	Passes test
Particle Size	> 95% passes through specified mesh
Fastness Properties	Meets commercial standards (Light, Wash, Rub)

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