| gptkbp:instanceOf | gptkb:hormone 
 | 
                        
                            
                                | gptkbp:ATCCode | G03BA04 
 | 
                        
                            
                                | gptkbp:biosynthesized_from | cholesterol 
 | 
                        
                            
                                | gptkbp:CASNumber | 145-13-1 
 | 
                        
                            
                                | gptkbp:category | endocrinology hormones
 neurosteroids
 cholestanes
 pregnanes
 
 | 
                        
                            
                                | gptkbp:chemicalFormula | C21H32O2 
 | 
                        
                            
                                | gptkbp:discoveredBy | gptkb:Adolf_Butenandt gptkb:Edward_Adelbert_Doisy
 1934
 
 | 
                        
                            
                                | gptkbp:foundIn | gptkb:skin gptkb:adrenal_gland
 brain
 liver
 gonads
 
 | 
                        
                            
                                | gptkbp:hasRole | gptkb:neurosteroid metabolic intermediate
 hormone precursor
 
 | 
                        
                            
                                | gptkbp:IUPACName | 3β-hydroxypregn-5-en-20-one 
 | 
                        
                            
                                | gptkbp:meltingPoint | 191–193 °C 
 | 
                        
                            
                                | gptkbp:MeSH_ID | D011287 
 | 
                        
                            
                                | gptkbp:metabolism | gptkb:CYP17A1 gptkb:3β-hydroxysteroid_dehydrogenase
 
 | 
                        
                            
                                | gptkbp:molecularWeight | 316.48 g/mol 
 | 
                        
                            
                                | gptkbp:predecessor | gptkb:progesterone gptkb:aldosterone
 gptkb:estradiol
 cortisol
 testosterone
 
 | 
                        
                            
                                | gptkbp:producedBy | gptkb:placenta brain
 adrenal cortex
 gonads
 
 | 
                        
                            
                                | gptkbp:PubChem_CID | 8955 CHEBI:16581
 CHEMBL1182
 DB02789
 
 | 
                        
                            
                                | gptkbp:routeOfAdministration | oral topical
 sublingual
 
 | 
                        
                            
                                | gptkbp:solubility | insoluble in water soluble in ethanol
 soluble in ether
 soluble in chloroform
 
 | 
                        
                            
                                | gptkbp:synonym | P5 3β-hydroxy-5-pregnen-20-one
 delta-5-pregnen-3β-ol-20-one
 
 | 
                        
                            
                                | gptkbp:UNII | 19GJ9Q6S8F 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Cholesterol 
 | 
                        
                            
                                | gptkbp:bfsLayer | 7 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Pregnenolone 
 |