Description

Disperse Red 349 is a high-performance synthetic dye belonging to the disperse dye class, specifically engineered for exceptional color fastness and thermal stability. Its primary value lies in providing vibrant, durable red shades that are resistant to sublimation and washing, which is critical for demanding textile applications. This product is essential for manufacturers in the polyester and acetate fiber industries, as well as for specialty applications in plastics and inks where color consistency and durability are paramount.

Application

• Primary dyeing and printing of polyester fibers and fabrics (including microfibers).
• Coloration of acetate and triacetate textiles.
• Mass coloration of engineering plastics such as polystyrene, ABS, and polycarbonate.
• Manufacture of transfer printing inks for the textile industry.
• Production of automotive interior fabrics requiring high lightfastness.
• Dyeing of polyester blends with cotton or wool.
• Specialty applications in non-woven fabrics and technical textiles.

Basic Information

Product Name	Disperse Red 349
CAS No.	112487-38-4
Molecular Formula	C20H17N5O5
Molecular Weight	407.38 g/mol
Synonyms	Disperse Red 349; C.I. Disperse Red 349; 1-Amino-2-phenoxy-4-hydroxyanthraquinone; Disperse Red S-R; Samaron Red F3BS; Foron Red S-R; Dianix Red S-R; Kayalon Polyester Red S-R; Terasil Red S-R; Intrasil Red S-R
EINECS	Contact for details

Quality Control

Our Disperse Red 349 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, shade, particle size distribution, and dispersion stability. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and application performance is provided with each shipment to guarantee it meets your specific technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a temperature between 15-25°C. Keep away from strong oxidizing agents and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Within agreed tolerance
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size	> 95% passes 300 mesh
Dispersion Stability	Stable in standard medium
Sublimation Fastness	≥ 4 (180°C, 30 sec)

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