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Imperatorin is a furocoumarin and a phytochemical and can be isolated from Urena lobata L. (Malvaceae). Its biosynthesis is from umbelliferone, a coumarin derivative.

Typical procedure [1]. Air-dried and pulverised roots (1.5 kg) of this plant were exhaustively extracted under reflux with benzene. The solvent was distilled off under the reduced pressure to yield 8 g of the extract which was then column chromatographed over silica gel. Elution of the column with petroleum ether: benzene (4:3) eluate yielded an impure solid which on rechromatography over silica-gel column afforded a pure solid crystallized from petroleum-ether as crystals (I), yield: 34mg (0.0023 %).

See also

Psoralen, the parent furocoumarin.


  1. A furocoumarin, Imperatorin isolated from Urena lobata L. (Malvaceae) Keshab Ghosh Molbank 2004, M382 [1] open access publication
  1. F. M. Dean Naturally Occurring Oxygen Ring Compounds, Butterworths, London, 1963.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Imperatorin". A list of authors is available in Wikipedia.
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