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current | 04:37, 7 April 2011 | 1,700 × 500 (6 KB) | DMacks | edit to make transparent background | |
21:05, 24 January 2007 | 1,700 × 500 (7 KB) | Pngbot | optimized with optipng | ||
00:18, 26 March 2006 | 1,700 × 500 (7 KB) | Benjah-bmm27 | {{PD-self}} Category:Chemical structures |
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