17alpha-Hydroxy-7alpha-mercapto-3-oxopregn-4-ene-21-carboxylic acid gamma-lactone 38753-76-3 7alpha-Thiospironolactone Deacetylspironolactone Pregn-4-ene-21-carboxylic acid, 17-hydroxy-7-mercapto-3-oxo-, gamma-lactone, (7alpha,17alpha)- SC 24813