N,N,N-Trialkyltryptamines

Bufothionine is a sulfur-containing compound which is present in the bufotoxins secreted by the parotoid gland of certain toads of the genera Bufo and Chaunus. The structure has been shown by X-ray crystallography to be (1,3,4,5-tetrahydro-5,5-dimethylpyrrolo-[4,3,2-de]quinolinio)-6-sulfate. This specific compound can be found in the skin of certain species of toad such as the Asiatic Toad, Chaunus arunco, Chaunus crucifer, Chaunus spinulosus, and Chaunus arenarum.

Aeruginascin, also known as '4-phosphoryloxy-N,N,N-trimethyltryptamine (4-PO-TMT'), is an indoleamine derivative which occurs naturally within the mushrooms Inocybe aeruginascens, Pholiotina cyanopus, and Psilocybe cubensis. It was discovered by Jochen Gartz.