1-Amino-2,4-dimethylbenzene hydrochloride 2,4-Dimethylaniline hydrochloride 2,4-Dimethylbenzenamine hydrochloride 2,4-Xylidine hydrochloride 2,4-Xylidine, hydrochloride 2-Methyl-p-toluidine hydrochloride 21436-96-4 4-Amino-1,3-dimethylbenzene hydrochloride 4-Amino-1,3-xylene hydrochloride 4-Amino-3-methyltoluene hydrochloride 4-Methyl-o-toluidine hydrochloride 95-68-1 CCRIS 255 m-4-Xylidine hydrochloride m-Xylidine hydrochloride