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. 2012 Sep 4;7(9):e44419. doi: 10.1371/journal.pone.0044419

Figure 1. Chemical structures of withanone and withaferin A.

Figure 1

Withanone is a C6, C7 epoxy compound (colored red) that has hydroxyl groups (colored green) on C5 and C17. On the other hand, withaferin A is a C5, C6 epoxy compound (colored red) with hydroxyl groups on C4 and C27 (colored green).