Methyl isobutyl ketone Other names: 4-Methyl-2-pentanone 4-Methylpentan-2-one MIBK Formula: C6H12O CAS: 108-10-1 Weight: 100,16 g/mol Boiling point: 116,8 °C Melting point: -83,5 °C Density: 0,8008 g/cm3