Description

Disperseyellow39 CAS NO 12236-29-2 is a high-performance organic pigment belonging to the diarylide yellow chemical class. This product is valued for its excellent color strength, good lightfastness, and strong solvent resistance, making it a critical component for achieving durable and vibrant coloration. It is primarily needed by manufacturers in the plastics, inks, coatings, and synthetic fiber industries for mass coloration and masterbatch production.

Application

• Plastics Coloring: Widely used for the mass pigmentation of polyolefins (PP, PE), PVC, PS, and engineering plastics, offering good heat stability and dispersion.
• Printing Inks: A key pigment for solvent-based and publication gravure inks, flexographic inks, and packaging inks, providing bright yellow shades.
• Industrial Coatings: Employed in the formulation of industrial paints, automotive refinishes, and coil coatings where durability is required.
• Synthetic Fibers: Used in the spin-dyeing process for synthetic fibers like polypropylene and polyester to create colorfast textiles.
• Masterbatch Production: An essential raw material for producing high-concentration color masterbatches used across various polymer systems.
• Rubber and Elastomers: Suitable for coloring various rubber compounds and elastomeric materials.

Basic Information

Product Name	Disperseyellow39
CAS No.	12236-29-2
Molecular Formula	C₃₂H₂₆Cl₂N₆O₄
Molecular Weight	629.50 g/mol
Synonyms	Pigment Yellow 39; C.I. 56298; Diarylamide Yellow; Diarylide Yellow AAA; Benzidine Yellow AAA; Permanent Yellow AAA; Vulcan Fast Yellow; Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxo-]; Dispers Yellow 39
EINECS	235-492-5

Quality Control

Our Disperseyellow39 is manufactured under a strict quality management system to ensure batch-to-batch consistency. Quality is verified through comprehensive testing including colorimetric analysis, purity assessment, and performance tests for strength, hue, and rheology. Certificates of Analysis (COA) detailing all specifications are provided with each 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. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Yellow Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Purity (HPLC)	≥ 96.0%
Volatile Matter (105°C)	≤ 2.0%
Ash Content	≤ 1.0%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Particle Size (D50)	< 5.0 μm
Oil Absorption	40 - 60 g/100g

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