Synonyms: Oxacyclotetradecane-2,10-dione,14-ethyl-4,6,7,12,13-pentahydroxy-3,5,7,9,11,13-hexamethyl-,(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)- (8CI); Pentadecanoic acid,3,5,6,11,12,13-hexahydroxy-2,4,6,8,10,12-hexamethyl-9-oxo-, m-lactone (7CI);Oxacyclotetradecane, erythronolide A deriv.; Oxacyclotetradecane-2,10-dione,14-ethyl-4,6,7,12,13-pentahydroxy-3,5,7,9,11,13-hexamethyl-,[3R-(3R*,4S*,5S*,6R*,7R*,9R*,11R*,12R*,13S*,14R*)]-;[3R-(3R*,4S*,5S*,6R*,7R*,9R*,11R*,12R*,13S*,14R*)]-14-Ethyl-4,6,7,12,13-pentahydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione