4,4'-Dinitro-2,2'-stilbenedisulfonic acid, sodium p-((p-aminophenyl)azo)benzenesulfonate reaction product 71076-96-5 Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-nitro-, reaction products with 4-((4-aminophenyl)azo)benzenesulfonic acid monosodium salt EINECS 275-165-7