The molecule is an 8-cyclohexyl-2,3,3a,4,5,6-hexahydropyrazino[3,2,1-jk]carbazole that is the (R)-enantiomer of tetrindole. It is a conjugate base of a (R)-tetrindole(1+). It is an enantiomer of a (S)-tetrindole.
(5R)-12-cyclohexyl-1,4-diazatetracyclo[7.6.1.05,16.010,15]hexadeca-9(16),10(15),11,13-tetraene