El Vikipedio
The formula was drawn in bkchem and GIMP.
Originally uploaded to English Wikipedia by Mykhal.
History of uploads:
16:04, 7 Nov 2004 . . Mykhal (2079 bytes) (better layout)
21:10, 19 Aug 2004 . . Mykhal (2464 bytes)
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This image has been (or is hereby) released into the public domain by its author, Mykhal at the English Wikipedia project. This applies worldwide.
In case this is not legally possible:
Mykhal grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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