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redrawn by me from references

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Presumed PD-self, since the uploader states it was created by him, and the "patent" license tag was described as "public domain". --Carnildo 23:16, 23 November 2005 (UTC)

from en wp

   *  (del) (cur) 15:18, 19 December 2005 . . Mykhal (Talk) . . 695x1015 (40521 bytes) (removed erroneus bond at bottom right; fixed aziridine stereochemistry)
   * (del) (rev) 04:09, 2 November 2005 . . E kwan (Talk) . . 695x1015 (40551 bytes) (redrawn by me from references)