tetrindole tetrindole tetrindole was a drug candidate that functions by reversibly inhibiting monoamine oxidase a; it was first synthesized in moscow in the early 1990s. tetrindole is similar in its chemical structure to pirlindole (pyrazidol), and metralindole. tetrindoleclinical dataatc codenoneidentifiers iupac name 2,3,3a,4,5,6-hexahydro-8-cyclohexyl-1h-pyrazinocarbazole pubchem cid160020chemspider140675 ychebichebi:77799 nchemical and physical dataformulac20h26n2molar mass294.442 g·mol−13d model (jsmol)interactive image smiles c1ccc(cc1)c2=cc3=c(c=c2)n4ccnc5c4=c3ccc5 inchi inchi=1s/c20h26n2/c1-2-5-14(6-3-1)15-9-10-19-17(13-15)16-7-4-8-18-20(16)22(19)12-11-21-18/h9-10,13-14,18,21h,1-8,11-12h2 ykey:auxchyjdvjzepg-uhfffaoysa-n y ny (what is this?) (verify)