2-Naphthalenesulfonic acid, sodium salt, polymer with cyanoguanidine and formaldehyde 70815-30-4 A condensation polymer of naphthalene sulfonic acid, formaldehyde, sodium salt Formaldehyde, polymer with cyanoguanidine and sodium 2-naphthalenesulfonate Guanidine, cyano-, polymer with formaldehyde and sodium 2-naphthalenesulfonate