2,4-Diamino-5-(p-sulfophenylazo)toluol [German] 2,4-Diamino-5-(p-sulphophenylazo)toluene 4-(4,6-Diamino-m-tolyl)azobenzenesulfonic acid Benzenesulfonic acid, 4-(4,6-diamino-m-tolyl)azo- DB5958000