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Pregnane(medicine)
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Pregnane (medicine)


pregnane
Parent hydrocarbon of two series of steroids stemming from 5a-pregnane (originally allopregnane) and 5b-pregnane (17b-ethyletiocholane). 5b-Pregnane is the parent of the progesterones, pregnane alcohols, ketones, and several adrenocortical hormones and is found largely in urine as a metabolic product of 5b-pregnane compounds. For structure, see steroids.