(-)-Bactobolin 72615-20-4 Antibiotic BN 183B BN 183B Bactobolin NSC 325014 Propanamide, 2-amino-N-(3-(dichloromethyl)-3,4,4a,5,6,7-hexahydro-5,6,8-trihydroxy-3-methyl-1-oxo-1H-2-benzopyran-4-yl)-, (3S-(3alpha,4alpha(R*),4abeta,5beta,6alpha))- Y 12278