Description

C.I. Pigment Yellow 163 is a high-performance, synthetic organic pigment belonging to the isoindolinone chemical class. It is valued for its excellent lightfastness, weather resistance, and vibrant, clean yellow hue, making it a superior choice for demanding applications. This pigment is essential for manufacturers in the coatings, plastics, and printing ink industries seeking durable and stable coloration.

Application

The primary applications for C.I. Pigment Yellow 163 include:

• Industrial and Automotive Coatings: Used in high-quality solvent-based and powder coatings requiring excellent durability and UV resistance.
• Plastics Coloring: Suitable for coloring engineering plastics, PVC, polyolefins, and synthetic fibers where heat stability is critical.
• Printing Inks: Employed in packaging, decorative, and publication gravure and flexographic inks for its strong color strength.
• Masterbatch Production: A key component in color concentrates and compounds for uniform dispersion in polymer matrices.

Basic Information

Product Name	C.I. Pigment Yellow 163
CAS No.	68186-92-5
Molecular Formula	C20H12Cl2N6O4
Molecular Weight	471.25 g/mol
Synonyms	Pigment Yellow 163; Isoindolinone Yellow; C.I. 11781; PY 163; 4,4'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one]; Colanyl Yellow 163; Hostaperm Yellow H4G; Cromophtal Yellow 163
EINECS	Contact for details

Quality Control

Our production of C.I. Pigment Yellow 163 adheres to stringent quality management systems to ensure batch-to-batch consistency. Key parameters such as color strength, hue, particle size distribution, and rheological properties are rigorously tested against established standards. Certificates of Analysis (COA) documenting purity and performance specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow Powder
Color Strength	95 - 105% (vs. Standard)
Hue	Within agreed tolerance
Lightfastness	7-8 (ISO 105-B02)
Heat Resistance	> 260 °C
Particle Size (D50)	< 1.0 µm
Volatile Content	< 2.0 %

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