alpha,beta-poly(N-2-hydroxyethyl)-co-(N-2-(3-(2-pyridyldithiopropylamide)-2'-amidoethylcarbamate)ethylene)-co-(N-2-(4-(trimethylammonium chloride-butylamide)-2'-amidoethylcarbamate)ethylene)aspartamide
alpha,beta-poly(n-2-hydroxyethyl)-co-(n-2-(3-(2-pyridyldithiopropylamide)-2'-amidoethylcarbamate)ethylene)-co-(n-2-(4-(trimethylammonium chloride-butylamide)-2'-amidoethylcarbamate)ethylene)aspartamide