CAS:497-23-4 Molekylær formel:C4H4O2 Molekylvægt:84,07 EINECS:207-839-3 Synonymer:y-crotonolacton, 2-buten-1,4-olid; 2,5-dihydrofuranon; 5-oxo-2,5-dihydrofuran-3-ylester; a,b-crotonolacton; Crotonsyre, 4-hydroxy-; 2,5-dihydrofuran-2-on; 2(5H)-furanon, y-crotonolacton, 2-buten-1,4-olid2(5H)-furanon 2-oxo-2,5-dihydrofuran; 2(5H)-FURANON FOR; SYNTESE 1 ML