114687-53-5 6a,12a-Epoxybenz(a)anthracen-7(12H)-one, 1,4,4a,5,6,12b-hexahydro-1,4a,8,12-tetrahydroxy-3-methyl-, (1-alpha,4a-alpha,6a-alpha,12-alpha,12a-alpha,12b-alpha)-(+)- Antibiotic SF 2315B SF 2315B