2-Butenedioic acid (2Z)-, mono(2-cyanoethyl) ester, polymer with ethenyl acetate 2-Butenedioic acid (Z)-, mono(2-cyanoethyl) ester, polymer with ethenyl acetate 31114-55-3 Ethenyl acetate, 2-butenedioic acid (Z), mono(2-cyanoethyl) ester, polymer Ethenyl acetate, polymer with mono(2-cyanoethyl) (Z)-2-butenedioate