SMILES: CC(C)C1=CC2=CC[C@H]3[C@](CCC[C@@]3([C@H]2CC1)C)(C)C=O
Description: The molecule is a derivative of abieta-7,13-diene having an oxo group on one of the gem-dimethyl groups. It derives from a hydride of an abieta-7,13-diene.