19879-06-2 8,11-Ethanofuro[2,3-e]naphtho[2,3-c:6,7-c']dipyran-2,6,13(9H)-trione, 3,3a,5,8,11,13b-hexahydro-7,8,12,15-tetrahydroxy-5,9-dimethyl-, [3aS-(3a.alpha.,5.alpha.,8.alpha.,9.alpha.,11.beta.,13b.alpha.,15S*)]- 91C-JWN-79 Antibiotic WR 141 B 80563 GRANATICIN Litmomycin Litomycin NSC77038 U 19728 Upjohn 206t WR 141