CAS No:62013-04-1||Chemical Formula:C42H78N2O14||Molecular Weight:835.08600||Exact Mass:834.54531|| 1R,2S,3R,6R,7S,8S,9R,10R,12R,13S,15R,17S)-9-[[3-(Dimethylamino)-3,4,6- trideoxy-b-D-xylo-hexopyranosyl]oxy]-3-ethyl-2,10-dihydroxy-15-[(2- methoxyethoxy)methyl]-2,6,8,10,12,17-hexamethyl-7-[(3-C-methyl-3-O-methyl-2, 6dideoxy-a-L-ribo-hexopyranosyl)oxy]-4,16-dioxa-14azabicyclo[11.3.1]heptadecan-5- one (or (9S)-9,11-[imino[(1R)-2-(2-methoxyethoxy)ethylidene]oxy]-9-deoxo-11- deoxyerythromycin)