Methyl tert-butyl ether Other names: 2-methoxy-2-methyl propane tert-Butyl methyl ether MTBE Formula: C5H12O CAS: 1634-04-4 Weight: 88,15 g/mol Boiling point: 55,2 °C Melting point: -108,6 °C Density: 0,7405 g/cm3