Term Name:	A-norpregn-3(5)-ene-2,20-dione
Synonyms:	(3aR,3bS,5aS,6S,8aS,8bS)-6-acetyl-3a,5a-dimethyl-3a,3b,4,5,5a,6,7,8,8a,8b,9,10-dodecahydrodicyclopenta[a,f]naphthalen-2(3H)-one, 4-norpregn-3(5)-ene-2,20-dione, A-norprogesterone
Definition:	A 2-oxo steroid that is a derivative of pregnane obtained by the loss of a methylene group.
Ontology:	ChEBI [CHEBI:79765]  ( EBI )