1,2,3,4-Tetrahydroharman 1,2,3,4-Tetrahydroharmane 1H-Pyrido[3,4-b]indole, 2,3,4,9-tetrahydro-1-methyl- 2506-10-7 Harman, 1,2,3,4-tetrahydro- Methtryptoline NSC92525 Tetrahydroharman