Pp-b.png (238 × 155 pixels, file size: 6 KB, MIME type: image/png)
It makes it by oneself with ChemDraw.
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current | 22:18, 24 January 2007 | ![]() | 238 × 155 (6 KB) | Pngbot (talk | contribs) | optimized with optipng |
12:55, 24 December 2005 | ![]() | 238 × 155 (7 KB) | たりぼー~commonswiki (talk | contribs) |
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