6H-benzofuro[3,2-c][1]benzopyran-3-ol, 6a,11a-dihydro-9-methoxy-, acetate 9-methoxy-6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromen-3-yl acetate InChI=1/C18H16O5/c1-10(19)22-12-4-6-14-16(8-12)21-9-15-13-5-3-11(20-2)7-17(13)23-18(14)15/h3-8,15,18H,9H2,1-2H