139871-83-3 2-Butenedioic acid (2Z)-, polymer with ethenol and ethenyl acetate, sodium salt 2-Butenedioic acid (Z)-, polymer with ethenol and ethenyl acetate, sodium salt Acetic acid ethenyl ester, polymer with (Z)-2-butenedioic acid and ethenol, sodium salt Ethenol, polymer with (Z)-2-butenedioic acid and ethenyl acetate, sodium salt