Description

Disperse Red 9 is a high-purity anthraquinone-based dye widely recognized for its vibrant red color and excellent fastness properties. This compound is essential for achieving consistent, durable coloration in synthetic polymer substrates. It is primarily utilized by manufacturers in the textile, plastics, and specialty ink industries seeking reliable and efficient disperse dyes for hydrophobic materials.

Application

• Textile Dyeing: Primary application for dyeing polyester (PET) and acetate fibers, providing a bright red shade with good wash and light fastness.
• Plastics Coloring: Used as a colorant for mass-coloration of hydrophobic plastics like polystyrene, polycarbonate, and certain polyolefins.
• Ink Formulation: Employed in the production of specialty inks for transfer printing and other applications requiring disperse dyes.
• Research & Development: Serves as a standard or reference material in analytical chemistry and dye research laboratories.
• Acrylic Fiber Dyeing: Applied in modified processes for dyeing certain types of acrylic fibers.

Basic Information

Product Name	Disperse Red 9
CAS No.	82-38-2
Molecular Formula	C₁₉H₁₈N₂O₅
Molecular Weight	354.36 g/mol
Synonyms	1-Amino-4-hydroxyanthraquinone; C.I. 60505; Disperse Red 9; 1-Amino-4-hydroxy-9,10-anthracenedione; 1-Amino-4-hydroxyanthracene-9,10-dione; 9,10-Anthracenedione, 1-amino-4-hydroxy-; C.I. Disperse Red 9; 4-Hydroxy-1-aminoanthraquinone
EINECS	201-411-0

Quality Control

Our Disperse Red 9 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high performance. Each lot is tested against rigorous specifications for color strength, purity, and application properties. A Certificate of Analysis (COA) detailing key parameters such as assay, shade, and particle size distribution is provided with every shipment to guarantee it meets your specific 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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size	≤ 5.0 μm (D90)

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