label: 3-(17 beta-hydroxy-6 beta,7 beta-methylene-3-oxo-4- androsten-17 alpha-yl)propionic acid gamma-lactone
label_lc: 3-(17 beta-hydroxy-6 beta,7 beta-methylene-3-oxo-4- androsten-17 alpha-yl)propionic acid gamma-lactone