2H,8H-Benzo[1,2-b:5,4-b']dipyran-2-one, 4-hydroxy-3-(4-hydroxyphenyl)-5-methoxy-8,8-dimethyl-10-(3-methyl-2-butenyl)- 2H,8H-Benzo[1,2-b:5,4-b']dipyran-2-one, 4-hydroxy-3-(p-hydroxyphenyl)-5-methoxy-8,8-dimethyl-10-(3-methyl-2-butenyl)- 5490-47-1 LONCHOCARPIC ACID NSC307981