(+)-Rugulosin 23537-16-8 5H,6H-6,13a,5a,14-[1,2,3,4]Butanetetraylcycloocta[1,2-b:5,6-b']dinaphthalene-5,8,13,16(14H)-tetrone, 1,7,9,15,17,20-hexahydroxy-3,11-dimethyl- 5H,6H-6,13a,5a,14-[1,2,3,4]Butanetetraylcycloocta[1,2-b:5,6-b']dinaphthalene-5,8,13,16(14H)-tetrone, 1,7,9,15,17,20-hexahydroxy-3,11-dimethyl-, [5aS-(5aR*,6S*,13aR*,14S*,17R*,18S*,19S*,20R*)]- NSC 160880 NSC249990 RUGULOSINE Rugulosin