| Pregnane | |
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(8S,9S,10S,13R,14S,17S)-17-ethyl- |
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| Identifiers | |
| CAS number | 24909-91-9 |
| PubChem | 6857422 |
| ChemSpider | 5256760 |
| ChEBI | CHEBI:8386 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C21H36 |
| Molar mass | 288.511 g/mol |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Pregnane is, indirectly, a parent of progesterone. It is a parent hydrocarbon for two series of steroids stemming from 5α-pregnane (originally allopregnane) and 5β-pregnane (17β-ethyletiocholane).
5β-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 5β-pregnane compounds.
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Pregnanes are steroid derivatives with carbons present at positions 1 through 21.
Most biologically significant pregnane derivatives fall into one of two groups: pregnenes and pregnadienes. Another class is pregnatrienes.
Pregnenes have a double bond. Examples include:
Pregnadienes have two double bonds. Examples include:
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