.alpha.-Cortol 20.alpha.-Cortol 3.alpha.,11.beta.,17,20.alpha.,21-Pentahydroxypregnane 5.beta.-Pregnane-3.alpha.,11.beta.,17,20.alpha.,21-pentol 516-38-1 Cortol NSC60459 Pregnane-3,11,17,20,21-pentol, (3.alpha.,5.beta.,11.beta.,20S)-