Product Name: Pigment Yellow 180 (Benzimidazolone Yellow HLR)
Other Names: Pigment Yellow 180, Permanent Yellow HG, Transparent Yellow HR

CAS No.: 77804-81-0
Molecular Formula: C36H32N10O8
Molecular Weight: 732.7015

Physical Properties:
- Appearance: Greenish-yellow powder
- Density: 1.52 g/cm³
- Oil Absorption: 71g/100g
- Specific Surface Area: 24 m²/g
- Hue Angle: 88.7 degrees (1/3S.D., HDPE)

Fastness Properties:
- Light Fastness: 7-8 grade
- Weather Fastness: 5 grade
- Heat Resistance: 290℃ in HDPE
- Solvent Resistance: Excellent
- Migration Resistance: Excellent
- Dispersion: Excellent

Applications:
- High-end automotive coatings (topcoats)
- Plastics: HDPE, Polypropylene, PVC, ABS
- Printing inks
- Art pigments

Special Features:
- Suitable for polypropylene mass coloration
- Non-migratory in plasticized PVC
- Suitable for ABS coloring
- Good dispersion and flocculation stability
- Suitable for high-end printing inks, metal decorative coatings, solvent-based and water-based packaging inks

Preparation Method:
2,5-dichloroaniline is diazotized and coupled with 5-acetoacetamidobenzimidazolone, or synthesized by diazotization of 1,2-bis(o-aminophenoxy)ethane, and finally pigmentized.