title: Tetraphyllin B from Turnera diffusa.
abstract: Tetraphyllin B has been isolated from the tropical American species Turnera diffusa Willd. The structure was established by NMR and MS.
authors.affiliation: Department of Botany, The University of Illinois, Urbana, Illinois, USA.
authors.forename: K C
authors.initials: KC
authors.lastname: Spencer
authors.forename: D S
authors.initials: DS
authors.lastname: Seigler