114687-52-4 Antibiotic SF 2315A Benz(a)anthracene-1,7,12(4H)-trione, 4a,5,6,12b-tetrahydro-4a,8-dihydroxy-3-methyl-, cis-(+)- SF 2315A cis-(+)-4a,5,6,12b-Tetrahydro-4a,8-dihydroxy-3-methylbenz(a)anthracene-1,7,12(4H)-trione