4-(6-Hydroxy-3,7-dimethyl-octa-2,7-dienyloxy)-furo[3,2-g]chromen-7-one 4-{[(2E)-6-hydroxy-3,7-dimethylocta-2,7-dien-1-yl]oxy}-7H-furo[3,2-g]chromen-7-one 5-(6-Hydroxy-3,7-dimethylocta-2,7-dienyloxy)psoralen 7H-furo[3,2-g][1]benzopyran-7-one, 4-[[(2E)-6-hydroxy-3,7-dimethyl-2,7-octadienyl]oxy]- InChI=1/C21H22O5/c1-13(2)17(22)6-4-14(3)8-10-25-21-15-5-7-20(23)26-19(15)12-18-16(21)9-11-24-18/h5,7-9,11-12,17,22H,1,4,6,10H2,2-3H3/b14-8