10190-66-6 Benzenesulfonic acid, 4-((2,4-diaminophenyl)azo)-, monosodium salt Benzenesulfonic acid, p-((2,4-diaminophenyl)azo)-, monosodium salt (8CI) C.I. 13220 C.I. DIRECT BROWN 191 EINECS 233-460-8 Padding Brown J Padding Brown N Sodium p-((2,4-diaminophenyl)azo)benzenesulphonate