Synonyms: Erythromycin lactobionate [JAN];1334-29-8;Erythromycin lactobionate (1:1) (salt);Lactobionic acid, compd. with erythromycin (1:1);Erythromycin. compd. with lactobionic acid;Erythrocin (TN);D-Gluconic acid, 4-O-beta-D-galactopyranosyl-, compd. with erythromycin (1:1) (9CI);Erythromycin, 4-O-beta-D-galactopyranosyl-D-gluconate (salt);Erythromycin mono(4-O-beta-D-galactopyranosyl-D-gluconate) (salt);(3R,4S,5S,6R,7R,9R,11R,12R,13R,14R)-6-[(2S,3R,4S,6R)-4-dimethylamino-3-hydroxy-6-methyl-oxan-2-yl]oxy-14-ethyl-7,12,13-trihydroxy-4-[(2S,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyl-oxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-1-oxacyclotetradecane-2,10-dione; (2R,3S,4R,5R)-2,3,5,6-tetrahydroxy-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-hexanoic acid;4-O-beta-D-Galactopyranosyl-D-gluconic acid compd. with erythromycin;Erythomycin lactobionate;