75539-66-1 Spiro[5H-benzocycloheptene-5,1'-[2,5]cyclohexadien]-4'-one,9-(acetyloxy)-6,7,8,9-tetrahydro-2,3,3',4,5'-pentamethoxy-7,8-dimethyl-, [7R-(7a,8b,9a)]- 140636-07-3 4a,7-Methano-4aH-benzocycloheptene-1,2-diaceticacid, decahydro-5-hydroxy-a2,a2,1-trimethyl-6-methylene-,[1S-(1a,2b,4ab,5b,7b,9aa)]-