2,2'-Stilbenedisulfonic acid, 4-chloro-4'-(5-sulfo-2H-naphtho(1,2-d)triazol-2-yl)-, trisodium salt 2-(4''-Chlor-4'-stilbyl)nafto( , )triazol-5,2',2''-trisulfonan sodny [Czech] 4-Chloro-4'-(5-sulfo-2H-naphtho(1,2-d)triazol-2-yl)-2,2'-stilbenedisulfonic acid 73926-93-9