Description

Solvent Yellow 146 is a high-performance organic pigment belonging to the diarylide yellow chemical class, identified by CAS No. 109945-04-2. It is valued for its excellent color strength, good lightfastness, and strong solvent resistance, making it a reliable choice for demanding coloration applications. This pigment is primarily needed by manufacturers in the plastics, inks, and coatings industries seeking vibrant, durable yellow hues.

Application

• Plastics Coloring: For mass coloration of polyolefins (PP, PE), PVC, polystyrene, and engineering plastics, offering good heat stability and dispersion.
• Industrial and Packaging Inks: Used in solvent-based and oil-based flexographic, gravure, and screen printing inks for films, foils, and packaging materials.
• Coatings and Paints: Imparts durable yellow coloration to industrial finishes, automotive refinish paints, and decorative coatings.
• Masterbatch Production: A key component in the manufacture of color concentrates and compounds for the plastics industry.
• Synthetic Fibers: For spin dyeing of fibers where consistent and fast coloration is required.
• Specialty Applications: Suitable for coloring various polymers, elastomers, and other specialty chemical formulations.

Basic Information

Product Name	Solvent Yellow 146
CAS No.	109945-04-2
Molecular Formula	C32H26Cl2N6O2
Molecular Weight	621.50 g/mol
Synonyms	Pigment Yellow 146; C.I. 11785; Diarylamide Yellow 146; 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]; 3,3'-Dichloro-4,4'-bis(acetoacetarylideazo)biphenyl; Solvent Yellow GRL; Permanent Yellow GR; Benzidine Yellow GR; Arylide Yellow 146
EINECS	Contact for details

Quality Control

Our Solvent Yellow 146 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. It is tested against key parameters including color strength, hue, particle size distribution, and thermal stability. Certificates of Analysis (COA) detailing purity and physical-chemical specifications are available upon request.

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 Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Purity (HPLC)	≥ 97.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 1.0%
Particle Size (D50)	≤ 5.0 μm
Heat Stability (Plastic)	≥ 260°C
Lightfastness	≥ 6-7 (ISO 105-B02)

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