Acetic acid, (p-chlorophenoxy)-, sodium salt; 4-Chlorophenoxyacetic acid sodium salt; Parafen; Sodium (4-chlorophenoxy)acetate; Sodium 4-chlorophenoxyacetate; Sodium p-chlorophenoxyacetate; Acetic acid, (4-chlorophenoxy)-, sodium salt; Acetic acid, (4-chlorophenoxy)-, sodium salt (9CI)