Crown ester
• 12-Crown-4

1 Trade name: 12-Crown-4
2 Formular: C₈H₁₆O₄
3 Structure:             CAS [294-93-9]
  

4 Specification: Purity(GC)≥98.0%
5 Appearance: Colorless transparent liquid
6 Usage: ligation agent and phase transfer agent