Molecular Formula | C9H16N4OS |
Molar Mass | 228.31 |
Density | 1.2080 (rough estimate) |
Melting Point | 95° |
Boling Point | 327.5±25.0 °C(Predicted) |
pKa | 0.16±0.20(Predicted) |
Refractive Index | 1.6390 (estimate) |
Physical and Chemical Properties | The pure product is a colorless crystalline solid. M. p.95 ~ 96.4 ℃, vapor pressure 7.5 × 10-6Pa (20 ℃). Solubility at 20 ℃: dichloromethane> 200 g/kg, toluene 100~200 g/kg, isopropanol 100~200 g/kg, hexane 2.5g/L, water 0.3mg/L. Distribution coefficient 120. |
Toxicity | LD50 in male, female rats (mg/kg): 2470, 1280 orally (Hack) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | ethanprofezin is a non-triazine herbicide, an inhibitor of photosynthesis. The main control of gramineous weeds (especially brome) and some broadleaf weeds in cereal crops (such as wheat) and tomato fields is 0.55~1.7kg of active ingredients/hm2. Application before bud and after bud in autumn has excellent control effect on rat tail. Application before tillering can control wild oats, strands, etc., with an application amount of 0.75~1.5kg/hm2. |
production method | in the presence of concentrated sulfuric acid,(CH3)3CCOCN and acetic anhydride are stirred and reacted for 4 hours to generate (CH3)3CCONHCOCH3, and then reacted with NH2NHCSNHNH2 to generate 4-amino -6-tert-butyl -3-mercapto -1,2,4-triazine -5 (4H) ketone, finally, it reacts with bromoethane (or dimethyl sulfate) to synthesize ethazinone. |