Accession Number | HMDB05943 |
Common_Name | 5beta-Pregnanediol |
Description | 5beta-Pregnanediol is an endogenous human metabolite of testosterone. The 5beta-Pregnanediol excretion is low in women with suspected placental insufficiency and in women with uterine fibroma. 5beta-Pregnanediol levels can change in endocrine disturbances such as hirsutism or Cushing's syndrome, depending on the stage of the disease. 5beta-Pregnanediol has been tried as a more reliable compound to measure in screening of urinary steroids when suspecting doping, due to its not significant isotopic fractionation that could lead to false positive results in anti-doping testing. 13C-enrichment caused by a diet change might be a reason of concern in athletes that move around between places and might have a considerable change of diet between competitions. In contrast to the results obtained with the carbon isotopic ratio, profiling of urinary testosterone/epitestosterone (T/E) ratios is found to be unaffected by a diet change. (PMID: 16338181, 5172227, 13636945, 14440289) |
Chemical_IUPAC_Name | 17-(1-hydroxyethyl)-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol |
Chemical Formula | C21H36O2 |
Sample Concentration | Not Available |
Mass Value | Not Available |
Mass Unit | Not Available |
Manufacturer | Not Available |
Analyzer | Not Available |
Delivery | Not Available |
Ionization | Not Available |
Predicted 1H NMR Spectrum | Download |
Predicted 1H NMR Peaklist | Download |
Predicted 13C NMR Spectrum | Download |
Predicted 13C NMR Peaklist | Download |
Sample Concentration | Not Available |
Mass Value | Not Available |
Mass Unit | Not Available |
Manufacturer | Not Available |
Frequency | Not Available |
1H NMR Spectrum | Not Available |
Sample Concentration | Not Available |
Mass Value | Not Available |
Mass Unit | Not Available |
Manufacturer | Not Available |
Frequency | Not Available |
13C NMR Spectrum | Not Available |
Low Energy Voltage | Not Available |
Low Energy Spectrum | Not Available |
Low Energy Peaklist | Not Available |
Medium Energy Spectrum | Not Available |
Hight Energy Spectrum | Not Available |