Synonyms: (13S,14R,22R,25S)-1,15-Dioxo-5-chloro-6β,13,20,22-tetrahydroxy-14,17α:14,27-diepoxy-16β,24-cyclo-13,14-seco-5α-ergosta-2-ene-18,26-dioic acid 18,20:26,22-dilactone;(5R,6R,8R,9S,10S,13S,14R,16β,22R,25S)-14,17:14,27-Diepoxy-6,13,20,22-tetrahydroxy-5-chloro-1,15-dioxo-16,24-cyclo-13,14-secoergosta-2-ene-18,26-dioic acid 18,20:26,22-dilactone;NSC-688074;Physalin H