Steroids
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Steroids vary by the functional groups attached to a
four-ring core and by the oxidation state of the rings.
gonane
(common ring structure)
Sterols
cholesterol
(animals)
β-sitosterol
(plants)
ergosterol
(fungi)
Androgens
testosterone
dihydrotestosterone (DHT)
androstenedione
dehydroepiandrosterone (DHEA)
Estrogens
estradiol
estrone
estriol
estetrol
progesterone
pregnenolone
cortisol
corticosterone
aldosterone
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Molecules modified from
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This page created by George Lisensky, Beloit College.
Last modified January 6, 2026.
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