C 1986 (OTTO) o-Chloroaniline, 98% Cas 95-51-2 - used as petroleum solvents. C 1986 (OTTO) o-Chloroaniline, 98% Cas 95-51-2 - used in biological studies to evaluate the mutagenicity and carcinogenicity of Salmonella typhimurium. Used as a Intermediates for dyestuff, pigment and specialty chemicals.