Chemically 3C-P is 4-propoxy-3,5-dimethoxyamphetamine, with the formula C<sub>14</sub>H<sub>23</sub>NO<sub>3</sub>. Although its name is similar to the psychedelic phenethylamine 2C-P, it is much closer in structure to mescaline, and proscaline. 3C-P is the 3-carbonhomologue of proscaline.