Synonyms: 2122 CB;2-alpha-Pyrrolidinyl-21-hydroxy-5-beta-pregnane-20-one;2-hydroxy-1-[2-(pyrrolidin-1-yl)gonan-17-yl]ethanone;5-beta-Pregnan-20-one, 2-alpha-pyrrolidinyl-21-hydroxy-;AC1Q5HJS;AC1L343M;AR-1E2231;LS-118592;2-hydroxy-1-(2-pyrrolidin-1-yl-2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17-hexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethanone