1-Methylethyl isocyanate Other names: Isopropyl isocyanate i-Propyl isocyanate i-PrNCO Formula: C4H7NO CAS: 1795-48-8 Weight: 85,11 g/mol Boiling point: 74 °C Melting point: < -75 °C Density: 0,8669 g/cm3