Synonyms: Anhydroerythromycin-N-oxide;USAF EL-99;Erythromycin, anhydro-, N-oxide;(3r,4s,5s,6r,7r,9r,11r,12r,13s,14r)-6-{[(2s,3r,4s,6r)-4-(dimethylnitroryl)-3-hydroxy-6-methyltetrahydro-2h-pyran-2-yl]oxy}-14-ethyl-7,12,13-trihydroxy-4-{[(2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2h-pyran-2-yl]oxy}-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione(non-preferred name);Erythromycin, N-oxide;AC1L3F2E;AC1Q21XN;KST-1A0237;AR-1A4419;LS-64652;(2S,3R,4S,6R)-2-[[(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-7,12,13-trihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-2,10-dioxo-oxacyclotetradec-6-yl]oxy]-3-hydroxy-N,N,6-trimethyloxan-4-amine oxide;63950-90-3