2H-Pyran-2-one, 5,6-dihydro-5-hydroxy-6-(3,6,13-trihydroxy-3-methyl-4-(phosphonooxy)-1,7,9,11-tridecatetraenyl)- 87860-38-6 Antibiotic CL 1565T CL 1565T PD 113271 PD-113,271