Similar names: Pregn-4-ene-21-carboxylic acid, 17-hydroxy-3-oxo-, γ-lactone, (17α)-; 17α-Pregn-4-ene-21-carboxylic acid, 17-hydroxy-3-oxo-, γ-lactone (6CI,7CI,8CI); 17β-Hydroxy-3-oxopregn-4-en-21-carboxylic acid γ-lactone; 3-(3-Oxo-17β-hydroxy-4-androsten-17-yl)propionic acid γ-lactone; 3-(3-Oxo-17β-hydroxyandrost-4-en-17α-yl)propiolactone; 3'-(3-Oxo-17β-hydroxyandrost-4-en-17α-yl)-propionic acid lactone; 6,7-Dihydrocanrenone; SC 5233; (2′R)-3′,4′-Dihydro-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione; Aldone