2-oxazolidinone, 4-(3-butenyl)- 4-but-3-en-1-yl-1,3-oxazolidin-2-one InChI=1/C7H11NO2/c1-2-3-4-6-5-10-7(9)8-6/h2,6H,1,3-5H2,(H,8,9