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.
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2012-07-16 18:33 Rogerchiorns 922×862× (69680 bytes) improved bond lengths and reversal of subunits
2012-06-06 10:26 Rogerchiorns 354×342× (27863 bytes) Uploading a file from a free published source using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]
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