1H-isoindole-1,3(2H)-dione, 2-(3-methyl-3-butenyl)- 2-(3-methylbut-3-en-1-yl)-1H-isoindole-1,3(2H)-dione InChI=1/C13H13NO2/c1-9(2)7-8-14-12(15)10-5-3-4-6-11(10)13(14)16/h3-6H,1,7-8H2,2H