·中文名:α-亚甲基-γ-丁内酯 ·英文名:α-Methylene-γ-butyrolactone ·外观:液体 ·分子式:C5H6O2 ·分子量:98.09999999999999 ·闪点:99°F ·折光率:n20/D 1.472(lit.) ·沸点:86-88°C12 mm Hg(lit.) ·密度:1.119 g/mL at 25°C(lit.) ·比旋光度99°F