Azithromycin EP Impurity G

Chemical Name: (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl -α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-[methyl[(4-methylphenyl)sulfonyl]amino]-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one

Synonym: 3'-N-Desmethyl-3'-N-tosyl Azithromycin; 3'-N-demethyl-3'-N-[(4-methylphenyl)sulfonyl]azithromycin (USP)