Peyton Jacob III

Peyton Jacob III
Other namesPeyton Jacob the Third; Peyton Jacob the 3rd
Alma materUniversity of California, Davis (B.S.); Purdue University (Ph.D.)
Occupation(s)Chemist; Pharmacologist
Years active1972–present
OrganizationUniversity of California, San Francisco
Websitehttps://tobaccoresearchcenter.ucsf.edu/peyton-jacob-iii-phd
https://cancer.ucsf.edu/people/jacob.peyton

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 (UCSF). 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.