title: Draculone, a new anthraquinone pigment from the tropical lichen Melanotheca cruenta.
abstract: A new red anthraquinone, draculone, has been isolated from the corticolous tropical lichen Melanotheca cruenta (= Trypethelium cruentum = Pyrenula cruenta) together with minor quantities of the known anthraquinone pigment haematommone. The structure of draculone was determined as 2-acetyl-1,3,4,6,8-pentahydroxyanthraquinone by spectroscopic methods.
authors.affiliation: Department Chemie der Ludwig-Maximilians-Universität, München, Germany.
authors.forename: Annick
authors.initials: A
authors.lastname: Mathey
authors.forename: Peter
authors.initials: P
authors.lastname: Spiteller
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Steglich
mesh_terms: D000880:Anthraquinones / Q000737:chemistry* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D008011:Lichens / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D014329:Tropical Climate
chemical_list: D000880:Anthraquinones; C466767:draculone