4-Hydroxy-2-butanone (3-Ketobutanol) 4-Hydroxy-2-butanone (3-Ketobutanol) CAS NO. 590-90-9 EC NO. 209-693-6 Synonym 3-Ketobutan-1-ol Formula C4H8O2 Mol. Weight 88.11 g/mol Alan Jesswein2021-09-09T14:12:42+02:00