2H,8H-Benzo(1,2-b,3,4-b')dipyran-8-one, 5-methoxy-2,2-dimethyl-6-(2-methylcrotonoyl)-10-phenyl-, (E)- 5-19-06-00471 (Beilstein Handbook Reference) 5-Methoxy-2,2-dimethyl-6-(2-methyl-1-oxo-2-butenyl)-10-phenyl-2H,8H-benzo(1,2-B':3,4-B')-dipyran-8-one 548-27-6 BRN 0061648 Calophyllolid Calophyllolide