发明授权
US4723985A Herbicidal phenoxybenzoic acid derivatives 失效
除草苯氧基苯甲酸衍生物

Herbicidal phenoxybenzoic acid derivatives
摘要:
Herbicidally active novel phenoxybenzoic acid derivatives of the formula ##STR1## in which R represents hydrogen, nitro or cyano,R.sup.1 represents hydrogen or alkyl andR.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, halogenalkyl or one equivalent of an alkali metal or alkaline earth metal ion, orR.sup.2 and R.sup.3 together represent an optionally substituted alkanediyl radical.
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