1H-NAPHTHO(2,3-c)PYRAN-3-ACETIC ACID, 3,4,4a,5,10,10a-HEXAHYDRO-9,10a-DIHYDROXY- 1H-Naphtho(2,3-c)pyran-3-acetic acid, 3,4,4a,5,10,10a-hexahydro-9,10a-dihydroxy-1-methyl-5,10-dioxo-, (1S-(1-alpha,3-beta,4a-alpha,10a-beta))- 5-18-09-00351 (Beilstein Handbook Reference) 52934-85-7 Antibiotic OS 3966B BRN 1440473 Nanaomycin B OS-3966-B