85940-64-3 Ammonium sodium 5-methoxy-4-((2-((2-methoxy-5-methyl-4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)-1,3-dioxobutyl)amino)-2-methylbenzenesulphonate Benzenesulfonic acid, 5-methoxy-4-((2-((2-methoxy-5-methyl-4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-1,3-dioxobutyl)amino)-2-methyl-, ammonium sodium salt EINECS 288-952-5