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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.

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High-resolution black/white .PNG made with ChemDraw and IrfanView — see WikiProject Chemistry - structure drawing for detailed instructions. Please drop me a note if you need the source file.