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English name: hymexazol
Chemical name: 3-hydroxy-5-methylisoxazole 
Molecular weight: 99
Molecular formula: C₄H₅NO₂
Physical and chemical property: colorless crystal; melting point: 86-87℃;flashing point: 205±2℃;25℃ vapor pressure 133.3x10-3Pa;25℃時(shí)在water solubility 為85g/L;soluble in most organic solvent
Function and features: 
broad spectrum bactericide on most plant disease caused by pathogenic fungus