Tetra-N-substituted urea derivatives as herbicides
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United States of America Patent
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Mar 19, 1985
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N/A
app pub date -
Jan 20, 1983
filing date -
Jan 20, 1983
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Expired
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Abstract
It is found that certain novel tetra-substituted urea derivatives have herbicidal properties. The derivatives bear, on the same nitrogen atom a cyanomethyl group and an esterified methylene phosphonic acid group.
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