poly([oxy(2-hydroxyethan-1,1-diyl)]oxy[1-(hydroxymethyl)ethan-1,2-diyl]) delvis O-etherificeret med carboxymethyl-grupper med visse amid-carboxy-grupper forbundet med tetrapeptidresten (glycylglycyl-L-phenylalanylglycyl) (INNCN)
poly([oxy(2-hydroxyethane-1,1-diyl)]oxy[1-(hydroxymethyl)ethane-1,2-diyl]) partly O-etherified with carboxymethyl groups with some carboxy groups amide linked to the tetrapeptide residue (glycylglycyl-L-phenylalanylglycyl) (INNCN)