68299-36-5 Poly(oxy(methyl-1,2-ethanediyl)), alpha-hydro-omega-((((4-(1-methyl-1-(4-(((2-((1-oxo-2-propenyl)oxy)ethoxy)carbonyl)amino)cyclohexyl)ethyl)cyclohexyl)amino)carbonyl)oxy)-, ether with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (3:1)