File:Melatonin structure.svg
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![File:Melatonin structure.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Melatonin_structure.svg/448px-Melatonin_structure.svg.png?20130103072530)
Size of this PNG preview of this SVG file: 448 × 349 pixels. Other resolutions: 308 × 240 pixels | 616 × 480 pixels | 986 × 768 pixels | 1,280 × 997 pixels | 2,560 × 1,994 pixels.
Original file (SVG file, nominally 448 × 349 pixels, file size: 5 KB)