File:Heptazine numbering.png
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![File:Heptazine numbering.png](https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Heptazine_numbering.png/597px-Heptazine_numbering.png)
Size of this preview: 597 × 599 pixels. Other resolutions: 239 × 240 pixels | 478 × 480 pixels | 765 × 768 pixels | 1,048 × 1,052 pixels.
Original file (1,048 × 1,052 pixels, file size: 50 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:42, 11 May 2020 | ![]() | 1,048 × 1,052 (50 KB) | commons>Jorge Stolfi | graphic tweaks |
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