2-Chloro-4,5-dimethylphenyl acetylmethylcarbamate 2313-93-1 AI3-27262 BRN 2055523 Carbamic acid, acetylmethyl-, 2-chloro-4,5-dimethylphenyl ester Carbamic acid, acetylmethyl-, 6-chloro-3,4-xylyl ester ENT 27,262 U-12379 Upjohn U-12379