1H-Xantheno(2,1,9-def)isoquinolinedisulfonic acid, 2,3-dihydro-2-(2-hydroxyethyl)-1,3-dioxo-, compd. with 2-aminoethanol (1:2) 72845-94-4 Xanthane(2,1,9-def)isoquinolinedisulfonic acid, 2-(2-hydroxyethyl)-1,3-dioxo-, bis(2-ethanolamine) salt