(3R-(3alpha,3abeta,7beta,8aalpha))-1,2,3,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-4H-3a,7-methanoazulen-4-one 146714-03-6 30960-39-5 4H-3a,7-Methanoazulen-4-one, 1,2,3,7,8,8a-hexahydro-3,6,8,8-tetramethyl-, (3R,3aR,7S,8aS)- Cedrenon Cedrenone EINECS 250-405-3