3-allyl-3H-furo[3,4-c]chromen-1(4H)-one 3H-furo[3,4-c][1]benzopyran-1(4H)-one, 3-(2-propenyl)- InChI=1/C14H12O3/c1-2-5-12-10-8-16-11-7-4-3-6-9(11)13(10)14(15)17-12/h2-4,6-7,12H,1,5,8H