Showing structure for 2-[(2e)-4-[(1s,4ar,7ar)-4a,5',5',7a-tetramethyl-6,7-dihydro-5h-spiro[cyclopenta[c]pyran-1,2'-furan]-3-yl]-3-methylbut-2-en-1-yl]-4-methoxy-6-methylphenol