(+)-Eremantholide A 58030-93-6 6,9-Epoxy-2H-1,4-dioxacyclodeca[cd]pentalene- 2,7(4aH)-dione, 2a,3,5,6,11a,11b-hexahydro-3-hydroxy- 2a,6,10-trimethyl-3-(1-methylethyl)-, (2aS,3R,4aS,6R,10Z,11aR,11bR)- Eremantholide A NSC380720