Product Name: Solvent Yellow 21
Color Index Number: 18690

CAS No.: 5601-29-6
Molecular Formula: C17H14N4O3 (or related metal complex structures)
Physical Appearance: Deep yellow powder

Key Properties:
- Vibrant yellow shade
- High transparency
- Strong coloring strength
- Good solubility in organic solvents (ethanol, ethyl acetate, DMF)
- Slightly soluble in water
- Good resistance to light, heat, and general weathering

Solubility:
- Ethanol: Good
- Ethyl Acetate: Good
- DMF: Good
- Water: Slightly soluble

Applications:
1. Wood Stains & Coatings:
- Penetrates and colors wood finishes evenly

2. Inks:
- Printing inks
- Stationery inks
- Ballpoint pen inks

3. Leathers:
- Natural and synthetic leather finishing
- Leather shading

4. Foils & Plastics:
- Aluminum foil coloring
- Hot stamping foil
- Vacuum plating films
- Nylon fibers

Product Features:
- Excellent solubility in organic solvents
- Good light and heat resistance
- High transparency
- Strong coloring strength
- Weather resistant

Compliance:
- EU REACH registered
- ISO9001 certified
- ISO14001 certified

Application Industries:
- Coatings
- Plastics
- Inks
- Leather finishing
- Foil coloring