Peyton Jacob III
Peyton Jacob III is an American chemist and pharmacologist who has studied nicotine, methamphetamine, hallucinogens, entactogens, and other psychoactive drugs. He is a researcher at the University of California, San Francisco. Jacob extensively collaborated with and was close friends with Alexander Shulgin. Among many other contributions, they developed the Shulgin Rating Scale together and methylone was first synthesized and described by the pair in the mid-1990s.