2,4,5t "iso" "2,4,5trichlorophenoxyacetic acid", its salts and esters
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. only with alcohol, phenol, aldehyde or ketone function, and 2,4,5t [iso] [2,4,5trichlorophenoxyacetic acid] and its salts and esters)