((4-Chloro-2,1,3-benzothiadiazol-5-yl)oxy)acetic acid ethyl ester 29123-12-4 4-Chloro-5-carboxymethoxybenzo-2,1,3-thiadiazole ethyl ester ACETIC ACID, ((4-CHLORO-2,1,3-BENZOTHIADIAZOL-5-YL)OXY)-, ETHYL ESTER BRN 1000507