title: Naphthaquinones of Alkanna orientalis (L.) Boiss.
abstract: The roots of Alkanna orientalis (L.) Boiss yielded alpha-methyl-n-butyl alkannin (compound 1) and alkannin acetate (compound 2). The compounds were identified by UV, MS, (1)H NMR and (13)C NMR. Quantitative determination of alpha-methyl-n-butyl alkannin and alkannin acetate in Alkanna orientalis (L) Boiss roots was established by TLC densitometry.
authors.affiliation: Department of Phytochemistry., National Research Centre, 12311, Dokki, Egypt.
authors.forename: Wafaa A
authors.initials: WA
authors.lastname: Tawfik
authors.forename: Khaled A
authors.initials: KA
authors.lastname: Shams
authors.forename: Nahla S
authors.initials: NS
authors.lastname: Abdel-Azim
authors.forename: Nahed M
authors.initials: NM
authors.lastname: Hassan
authors.forename: Shams I
authors.initials: SI
authors.lastname: Ismail