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20-alpha-Dihydroprogesterone MeSH Descriptor Data 2022


MeSH Heading
20-alpha-Dihydroprogesterone
Tree Number(s)
D04.210.500.745.745.654.829.100
D06.472.334.851.687.750.074
Unique ID
D004092
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D004092
Scope Note
A biologically active 20-alpha-reduced metabolite of PROGESTERONE. It is converted from progesterone to 20-alpha-hydroxypregn-4-en-3-one by the 20-ALPHA-HYDROXYSTEROID DEHYDROGENASE in the CORPUS LUTEUM and the PLACENTA.
Entry Term(s)
20 alpha-Dihydroprogesterone
20 alpha-Hydroxy-4-Pregnen-3-One
20 alpha-Hydroxyprogesterone
20-alpha-Hydroxyprogesterone
20alpha-Hydroxypregn-4-Ene-3-One
Dihydroprogesterone
Pregn-4-en-3-one, 20-alpha-hydroxy-
Pharm Action
Progestins
Registry Number
145-14-2
CAS Type 1 Name
Pregn-4-en-3-one, 20-hydroxy-, (20S)-
Previous Indexing
Progesterone (1974)
Public MeSH Note
2004; see DIHYDROPROGESTERONE 1991-2003, see PROGESTERONE 1975-1990
History Note
2004 (1975)
Date Established
1991/01/01
Date of Entry
1974/11/11
Revision Date
2016/05/27
20-alpha-Dihydroprogesterone Preferred
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