(Z)-Butylidenephthalide ((Z)-3-Butylidenephthalide) has antitumor and hypoglycemic effects, and can effectively inhibit the tumor growth of glioma and inhibit R-glucosidase activity.

1. 3-Butylidenephthalide (Butylidene phthalide) has antihyperglycemic effect is due to inhibition of α-glucosidase at the intestinal level, inhibited the activity of yeast-α-glucosidase (IC(5) 2.35 mM) in a noncompetitive fashion with a K(i) of 4.86 mM.