113151-66-9 31799-71-0 Poly(oxy-1,2-ethanediyl), alpha,alpha'-(((1-oxo-9-octadecenyl)imino)di-2,1-ethanediyl)bis(omega-hydroxy-, (Z)- Poly(oxy-1,2-ethanediyl), alpha,alpha'-(((9Z)-(1-oxo-9-octadecenyl)imino)di-2,1-ethanediyl)bis(omega-hydroxy-