The molecular formula C13H18N2O (molar mass : 218.29 g/mol, exact mass : 218.141913) may refer to : * Bufotenidine * Eseroline * Fenoxazoline * 4-HO-MET * Lespedamine * 5-MeO-AET * 4-MeO-DMT * 5-Methoxy-N,N-dimethyltryptamine, a psychedelic tryptamine * 1-Methylpsilocin * α,N,O-TMS This set index page lists chemical structure articles associated with the same molecular formula.If an internal link led you here, you may wish to change the link to point directly to the intended article.