(2,4-Dichlorophenoxy)acetic acid 2-butoxy-2-oxoethyl ester 52671-26-8 Acetic acid, (2,4-dichlorophenoxy)-, 2-butoxy-2-oxoethyl ester BRN 2010743 Fenagon Glycolic acid, butyl ester, (2,4-dichlorophenoxy)acetate