12-Crown-4 [ 294-93-9 ]
                - Appearance
 - clear colorless to slightly yellow liquid
 
- Boiling Point
 - 120.063 ( ℃ )
 
| mp | 16 °C(lit.) | 
| bp | 61-70 °C0.5 mm Hg(lit.) | 
| density | 1.089 g/mL at 25 °C(lit.) | 
| refractive index | n | 
| Fp | >230 °F | 
| Water Solubility | MISCIBLE | 
| Sensitive | Air Sensitive | 
| BRN | 1363064 | 
| CAS DataBase Reference | 294-93-9(CAS DataBase Reference) | 
| NIST Chemistry Reference | 12-Crown-4(294-93-9) | 
| EPA Substance Registry System | 1,4,7,10-Tetraoxacyclododecane(294-93-9) |