. . . . . . . . . . . . . . . . . . "Heptanoic Acid"@en . . . . . . . . . . . "experimental"@en . "Umberto Valcavi, Sergio Innocenti, Enrico Bosone, Paolo Farina, Vittorio Marotta, Gianbattista Zabban, \"Process for preparing 7-(2-hexyl-5-hydroxy-cyclopentyl)-heptanoic acid.\" U.S. Patent US4894473, issued September, 1985."@en . . . . . .