38719-97-0 Poly(oxy-1,2-ethanediyl), alpha-hydro-omega-hydroxy-, ether with N-(2-(bis(2-hydroxyethyl)methylammonio)ethyl)-N,N'-bis(hydroxyethyl)-N,N'-dimethyl-N'-octadecyl-1,2-ethanediaminium tris(methyl sulfate) (4:1) Poly(oxy-1,2-ethanediyl), alpha-hydro-omega-hydroxy-, ether with N-(2-(bis(2-hydroxyethyl)methylammonio)ethyl)-N,N'-bis(hydroxyethyl)-N,N'-dimethyl-N'-octadecyl-1,2-ethanediaminium tris(methyl sulfate) (4:1) (salt)