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Molecular formula : C7H10N4O3 MW : 198.42 CAS No. :57966-95-7
nature : NEEDLE colorless crystalline solid (from ethanol), 160-161 ° C melting point, the vapor pressure of 0.8 × 10-mask (25 C). Solubility (1000 each) : water 1.0g, 105g acetone, chloroform Weekly, dimethyl formamide slots. In neutral or weak acid medium water stability, and soil loss within seven days to 50%.
Preparation : N - ethyl urea, acetic acid and cyanide acetic anhydride reacted N - cyanide acid-N - ethyl urea, N-acetyl cyanide-N - ethyl urea with sodium nitrite reaction 1h 2-cyano-2-acetamide Oximato sodium . The 2-cyano-2-acetamide Oximato sodium, slowly joined dimethyl sulfate, while continually using 50% sodium hydroxide solution pH, pH 7-8 reaction cymoxanil.
purposes : cymoxanil is a new fungicide, which grape downy mildew and other fungus Phytophthora infestans Disease Control are obvious.
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