38254-15-8 Ergosta-2,24-dien-26-oic acid, 5,6-epoxy-14,17,20,22-tetrahydroxy-1-oxo-, .gamma.-lactone Ergosta-2,24-dien-26-oic acid, 5,6-epoxy-14,17,20,22-tetrahydroxy-1-oxo-, .gamma.-lactone, (5.beta.,6.beta.,17.alpha.,22R)- NSC179834 WITHANOLIDE E