5H-Benzo(d)naphtho(2,3-b)pyran-5,7,12-trione, 8-hydroxy-1-methoxy-3-methyl- 76191-51-0 8-Hydroxy-1-methoxy-3-methyl-5H-benzo(d)naphtho(2,3-b)pyran-5,7,12-trione Antibiotic WS5995A BRN 4561637 WS 5995 WS-5995 A