Einecs 283-665-1

4-[(5-chloro-4-methyl-2-sulphophenyl)azo]-3-hydroxynaphthalene-2,7-disulphonic acid, calcium salt

4-[(5-Chloro-4-methyl-2-sulfophenyl)azo]-3-hydroxy-2,7-naphthalenedisulfonic acid/calcium,(1:x) salt