Erythromycin phosphate

erythromycin phosphate ; (2r,3r,4s,5r,8r,9s,10s,11r,12r,14r)-11-[(2s,3r,4s,6r)-4-(dimethylamino)-3-hydroxy-6-methyl-tetrahydropyran-2-yl]oxy-5-ethyl-3,4,12-trihydroxy-9-[(2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyl-tetrahydropyran-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6-oxacyclotetradecane-1,7-quinone ; phosphoric acid ; (2r,3r,4s,5r,8r,9s,10s,11r,12r,14r)-11-[(2s,3r,4s,6r)-4-(dimethylamino)-3-hydroxy-6-methyl-oxan-2-yl]oxy-5-ethyl-3,4,12-trihydroxy-9-[(2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyl-oxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6-oxacyclotetradecane-1,7-dione ; (2r,3r,4s,5r,8r,9s,10s,11r,12r,14r)-11-[(2s,3r,4s,6r)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-5-ethyl-3,4,12-trihydroxy-9-[(2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6-oxacyclotetradecane-1,7-dione ; (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