Synonyms: 1,4-Naphthalenedione,5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-pentenyl)-, (R)-;1,4-Naphthalenedione,5,8-dihydroxy-2-[(1R)-1-hydroxy-4-methyl-3-pentenyl]- (9CI);1,4-Naphthoquinone, 5,8-dihydroxy-2-(1-hydroxy-4-methyl-3-pentenyl)-, (+)-(8CI);Shikonin (6CI);(+)-Shikonin;C.I. 75535;Isoarnebin 4;NSC 252844;Shikonin S;Shikonine;Tokyo Violet;