title: New naphthoquinones from Arnebia hispidissima roots.
abstract: Besides shikonin and arnebifuranone, two new shikonin esters isolated from the roots of Arnebia hispidissima have been characterized as butylshikonin and 2'-methyl-hexa-1',3'-dienoylshikonin by physicochemical methods. Arnebifuranone is the first report from this species.
authors.forename: Y N
authors.initials: YN
authors.lastname: Shukla
authors.forename: A
authors.initials: A
authors.lastname: Srivastava
authors.forename: S C
authors.initials: SC
authors.lastname: Singh
authors.forename: S
authors.initials: S
authors.lastname: Kumar
mesh_terms: D005505:Food Coloring Agents / Q000737:chemistry; D019684:Magnoliopsida / Q000737:chemistry*; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry
chemical_list: C438924:2'-methylhexa-1',3'-dienoylshikonin; D005505:Food Coloring Agents; D009285:Naphthoquinones; D010936:Plant Extracts; C438923:butylshikonin