PiHKAL

DMCPA, also known as 2,5-dimethoxy-4-methylphenylcyclopropylamine, is a psychedelic drug of the phenethylamine, amphetamine, and phenylcyclopropylamine families related to DOM. It is a derivative of tranylcypromine and is the cyclized phenethylamine analogue of DOM in which the α and β positions have been connected with a carbon atom to form a cyclopropyl group.

Metaescaline (ME), also known as 3-ethoxy-4,5-dimethoxyphenethylamine, is a psychedelic drug of the phenethylamine and scaline families related to mescaline. It is the analogue of mescaline in which the methoxy group at the 3 position has been replaced with an ethoxy group. The drug is also the positional isomer of escaline in which the methoxy group at the 3 (meta) position and the ethoxy group at the 4 position have been interchanged.

6-Bromo-MDA, also known as 6-bromo-3,4-methylenedioxyamphetamine or as 2-bromo-4,5-methylenedioxyamphetamine (2-bromo-4,5-MDA), is a psychoactive drug of the phenethylamine, amphetamine, and MDxx families related to 3,4-methylenedioxyamphetamine (MDA). It is the 6-bromo derivative of MDA. In his book PiHKAL (Phenethylamines I Have Known and Loved), Alexander Shulgin lists 6-bromo-MDA's dose as 350mg orally and its duration as unknown. 6-Bromo-MDA has been reported to produce amphetamine-like effects with no other details provided. However, Daniel Trachsel reported that 6-bromo-MDA was inactive

MDPR, also known as '3,4-methylenedioxy-N-propylamphetamine or as N-propyl-MDA', is a lesser-known psychoactive drug and a substituted amphetamine.

'3,4-Methylenedioxy-N-hydroxy-N-methylamphetamine, also known as MDMOH, MDHMA, or FLEA', is an entactogen, psychedelic, and stimulant of the phenethylamine, amphetamine, and MDxx families. It is the N-hydroxy homologue of MDMA ("Ecstasy"), and the N-methyl homologue of MDOH.