File:Reaction-Pregnenolone-Progesterone2.png
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![File:Reaction-Pregnenolone-Progesterone2.png](https://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Reaction-Pregnenolone-Progesterone2.png/800px-Reaction-Pregnenolone-Progesterone2.png?20110828015936)
Size of this preview: 800 × 220 pixels. Other resolutions: 320 × 88 pixels | 640 × 176 pixels | 1,024 × 281 pixels | 3,479 × 956 pixels.
Original file (3,479 × 956 pixels, file size: 41 KB, MIME type: image/png)