Synonyms: 2-Propenamide, 3,3'-(1,4-phenylene)bis(N-(5-chloro-2,4-dimethoxyphenyl)-3-hydroxy-, sodium salt (1:2);2-Propenamide, 3,3'-(1,4-phenylene)bis(N-(5-chloro-2,4-dimethoxyphenyl)-3-hydroxy-, disodium salt;Disodium 3,3'-(p-phenylene)bis(N-(5-chloro-2,4-dimethoxyphenyl)-3-hydroxyacrylamidate);disodium (1Z,1'Z)-3,3'-benzene-1,4-diylbis{1-[(5-chloro-2,4-dimethoxyphenyl)amino]-3-oxoprop-1-en-1-olate}