1-(2-Chloro-5-sulfophenyl)-3-methyl-5-aminopyrazole 2-(2'-Chloro-5'-sulfophenyl)-5-methyl-3-pyrazolamine 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)-4-chlorobenzenesulphonic acid 68227-68-9 Benzenesulfonic acid, 3-(5-amino-3-methyl-1H-pyrazol-1-yl)-4-chloro- EINECS 269-380-5