The molecular formula C21H34O3 may refer to:
- Tetrahydrodeoxycorticosterone (5β-Pregnane-3α,21-diol-20-one)
- 5α-Pregnane-3α,17α-diol-20-one, also known as 17α-hydroxyallopregnanolone
This set index page lists chemical structure articles associated with the same molecular formula.
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