CAS:497-23-4 Ụdị molekụla:C4H4O2 Arọ Molecular:84.07 EINECS:207-839-3 Ụdị okwu:γ-Crotonolactone, 2-Buten-1,4-olide; 2,5-Dihydrofuranone; 5-Oxo-2,5-dihydrofuran-3-yl ester; a, b-crotonolactone; Crotonic acid, 4-hydroxy-; 2,5-Dihydrofuran-2-otu; 2 (5H) - Furanone, γ-Crotonolactone, 2-Buten-1,4-olide2 (5H) - Furanone 2-Oxo-2,5-dihydrofuran; 2 (5H) -FURANONE maka; SYNTESIS 1 ml