5-(Carboxymethylcarbamoyl-4-phenylazo)salicylic acid (disodium)

5-[[4-[(Sodiooxycarbonylmethyl)carbamoyl]phenyl]azo]-2-hydroxybenzoic acid sodium salt

Benzoic acid, 5-((4-(((carboxymethyl)amino)carbonyl)phenyl)azo)-2-hydroxy-, disodium salt