5-MeO-DMT
5-Methoxy-N,N-dimethyltryptamine; present in Bufo alvarius toad venom at ~15% by weight. Active dose 1-5 mg by inhalation. Schedule I in US since 2012. Distinct from 4-hydroxy-DMT (psilocin) by the 5-methoxy rather than 4-hydroxy substitution.