Einecs 259-944-9

(E)-3-isobutylidenephthalide

2-Methylpropylidenephthalide (E)

(E)-3-(2-Methylpropylidene)-1(3H)-isobenzofuranone

1(3H)-Isobenzofuranone, 3-(2-methylpropylidene)-, (3E)-