1917-92-6 2,4-(Dichlorophenoxy)acetic acid, amyl ester 2,4-D Pentyl ester 2,4-Dichlorophenoxyacetic acid, amyl(pentyl) ester Acetic acid, (2,4-dichlorophenoxy)-, pentyl ester Amyl(pentyl) 2,4-dichlorophenoxyacetate NSC409405 Pentyl (2,4-dichlorophenoxy)acetate