Description

Disperse Yellow 3 is a synthetic organic dye belonging to the azo class, widely recognized for its bright yellow hue and excellent dispersion properties. This high-performance colorant is valued for its strong tinting strength and good fastness properties, making it a critical component in coloring synthetic polymers. It is primarily utilized by manufacturers in the textile and plastics industries seeking consistent, vibrant coloration for hydrophobic fibers and materials.

Application

• Textile Dyeing: Primary application for dyeing hydrophobic fibers such as polyester, acetate, and nylon, often via high-temperature dyeing processes.
• Plastics and Polymer Coloring: Used as a color masterbatch or additive for coloring polypropylene (PP), polystyrene (PS), ABS, and other engineering plastics.
• Ink Manufacturing: Employed in the formulation of specialty inks for transfer printing and other applications requiring disperse dyes.
• Acrylic Fiber Dyeing: Suitable for dyeing modified acrylic fibers where disperse dyes are applicable.
• Research & Development: Serves as a standard or reference material in analytical chemistry and dye research laboratories.

Basic Information

Product Name	Disperse Yellow 3
CAS No.	2832-40-8
Molecular Formula	C12H9N5O4
Molecular Weight	287.23 g/mol
Synonyms	Disperse Yellow 3; C.I. 11855; 1-(2,4-Dinitrophenylazo)-2-naphthol; 2-Naphthol, 1-[(2,4-dinitrophenyl)azo]-; Celliton Fast Yellow G; C.I. Disperse Yellow 3; Disperse Fast Yellow G; Amacel Yellow G
EINECS	220-600-8

Quality Control

Our Disperse Yellow 3 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, dispersion stability, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with every shipment to support your quality assurance protocols.

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	Yellow to orange 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.