63555-48-6 Ircinianin Spiro(furan-2(5H),4'-(4H)inden)-5-one, 5'-(5-(3-furanyl)-2-methyl-1-pentenyl)-1',2',3',3'a,5',7'a-hexahydro-3-hydroxy-3',4,7'-trimethyl-, (3'S-(3'alpha,3'aalpha,4'beta,5'alpha(E),7'abeta))-