Avoparcina, 49-chloro-4B,50-di-O-a-D-mannopyranosyl-; 22H-8,11:18,21-Dietheno-23,36-(iminomethano)-13,16:31,35-dimetheno-1H,16H-[1,6,9]oxadiazacyclohexadecino[4,5-m][10,2,16]benzoxadiazacyclotetracosine,avoparcin a deriv.; Galacardin A; Galacardine A