Synonyms: Calycanthine(6CI,7CI,8CI); (+)-Calycanthine;5,10b:11,4b-Bis(iminoethano)dibenzo[c,h][2,6]naphthyridine,5,6,11,12-tetrahydro-13,18-dimethyl-, [4bS-(4ba,5a,10ba,11a)]-; NSC 99016; [4bS-(4ba,5a,10ba,11a)]-5,6,11,12-Tetrahydro-13,18-dimethyl-5,10b:11,4b-bis(iminoethano)dibenzo[c,h][2,6]naphthyridine;d-Calycanthine