129539-27-1 2-Butenedioic acid (E)-, polymer with 1,3-butadiene, ethenylbenzene, methylenebutanedioic acid and 2-methyl-2-propenoic acid, ammonium salt
129539-29-3 Butanedioic acid, methylene-, polymer with 1,3-butadiene, diethenylbenzene and ethenylbenzene, ammonium salt
129539-35-1 2-Butenedioic acid (E)-, polymer with 1,3-butadiene and ethenylbenzene, sodium salt