5-Methylfurfural Other names: 5-Methyl-2-furancarboxaldehyde 5-Methyl-2-furaldehyde 2-Formyl-5-methylfuran Formula: C6H6O2 CAS: 620-02-0 Weight: 110,11 g/mol Boiling point: 187 °C Melting point: -23 °C Density: 1,105 g/cm3