STILBENE-4,4'-BIS[(1-AZO)-3,4-DIHYDROXYBENZENE]-2,2'-DISULFONIC ACID DIAMMONIUM SALT;STILBAZO;diammonium 4,4'-bis[(3,4-dihydroxyphenyl)azo]stilbene-2,2'-disulphonate;Stilbazo=Spectrophotmetricreagentfor;4,4''-Bis-(3,4-dihydroxyphenylazo)-2,2''-stilbenedisulfonic acid diammonium s;Stilbazo [Spectrophotometric reagent for Al and other metals]