1058-92-0 2,7-Naphthalenedisulfonic acid, 3-((5-chloro-2-hydroxyphenyl)azo)-4,5-dihydroxy-, disodium salt 3-((5-Chloro-2-hydroxyphenyl)azo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt 50814-17-0 62610-65-5 Disodium 3-(5-chloro-2-hydroxyphenylazo)-4,5-dihydroxynaphthalene-2,7-disulphonate EINECS 213-894-4 Eriochrome blue SE MORDANT BLUE 13