2,4-D 1-Methylpropyl ester

butan-2-yl 2-(2,4-dichlorophenoxy)acetate

Acetic acid, (2,4-dichlorophenoxy)-, sec-butyl ester

(2,4-DICHLOROPHENOXY)ACETIC ACID, 1-METHYLPROPYL ESTER)

Acetic acid, (2,4-dichlorophenoxy)-, 1-methylpropyl ester