23-Demycinosyltylosin 23-O-De(6-Deoxy-2,3-di-O-methyl-beta-D-allopyranosyl)tylosin 23-O-Demycinosyltylosin 79592-92-0 Antibiotic YO 9010 BRN 4649503 Demycinosyltylosin Tylosin, 23-O-De(6-deoxy-2,3-di-O-methyl-beta-D-allopyranosyl)-