4-HO-MPT

Also known as 4-INDOLOL, 3-[2-(METHYLPROPYLAMINO)ETHYL], 4-HYDROXY-N-METHYL-N-PROPYLTRYPTAMINE, 3-[2-(METHYLPROPYLAMINO)ETHYL]-4-INDOLOL

There is only a single report on file, too little to fix dose or duration, but extrapolation places it in the familiar psilocin-like range of up to about 20 milligrams orally. The author generalizes that most tryptamines carrying a 4-hydroxy group and up to six carbons on the nitrogen are active around 10 to 20 milligrams, while one bulky tert-butyl variant proved essentially inert.