Erythromycin EP Impurity C

Chemical Name: (2S,4aR,4′R,5′S,6′S,7R,8S,9R,10R,12R,14R,15R,16S,16aS)-7-ethyl-5′,8,9,14-tetrahydroxy-4′-methoxy-4′,6′,8,10,12,14,16-heptamethyl-15-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]hexadecahydrospiro[5H,11H-1,3-dioxino[5,4-c]oxacyclotetradecin-2,2′-pyrane]-5,11-dione (as per EP)

Synonym: Erythromycin E