2(3H)-FURANONE, DIHYDRO-3-ACETYL-3-BENZYL-5-(2-PROPYNYLOXYMETHYL)- 31339-79-4 Propargyloxymethyl-4 acetyl-2 benzyl-2 gamma-butyrolactone gamma-Butyrolactone, 2-acetyl-2-benzyl-4-propargyloxymethyl-