This image of a simple structural formula is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
{{Information |Description=General chemical structure of en:ginkgolides. The formula was drawn in [http://www.zirael.org/bkchem bkchem] and [http://www.gimp.org GIMP] by user Mykhal. |Source=Originally from [http://en.wikipedia.o