Synonyms: Poly(oxy-1,2-ethanediyl), .alpha.-(9Z)-9-octadecenyl-.omega.-hydroxy-, phosphate, potassium salt;Poly(oxy-1,2-ethanediyl), .alpha.-9-octadecenyl-.omega.-hydroxy-, (Z)-, phosphate, potassium salt;poly(oxy-1,2-ethanediyl), alpha-9-octadecenyl- omega-hydroxy-, (z)-, phosphate, potassium salt;Poly(oxy-1,2-ethanediyl),.alpha.-9-octadecenyl-.omega.-hydroxy-,(Z)-,phosphate,potassium salt