CAS:497-23-4 Molekylformel:C4H4O2 Molekylvekt:84,07 EINECS:207-839-3 Synonymer:y-krotonolakton, 2-buten-1,4-olid; 2,5-dihydrofuranon; 5-okso-2,5-dihydrofuran-3-ylester; a,b-krotonolakton; krotonsyre, 4-hydroksy-; 2,5-dihydrofuran-2-on; 2(5H)-furanon, y-krotonolakton, 2-buten-1,4-olid2(5H)-furanon 2-okso-2,5-dihydrofuran; 2(5H)-FURANON FOR; SYNTESE 1 ML