Molecular Formula | C14H13ClN6O5S |
Molar Mass | 412.81 |
Density | d25 1.574 |
Melting Point | 183-184° (dec) |
Appearance | neat |
pKa | 4.0(at 25℃) |
Storage Condition | 0-6°C |
Refractive Index | 1.715 |
Physical and Chemical Properties | Pure white crystals. m.p.183 ~ 184 ℃ (decomposition), relative density 1.574 (25 ℃), vapor pressure 4.52 × 10-2Pa (25 ℃), dissociation constant pka4. The solubility in organic solvent at 25 ℃ is: dichloromethane 12.8g/L, acetone 7.6g/L, acetonitrile 2.5g/L, ethyl acetate 2.2g/L, xylene 400mg/L; in water solubility of 308mg/L (pH = 7), 67mg/L (pH = 6.1), 5mg/L (pH = 5.1). The distribution coefficient was 0.05. |
WGK Germany | 1 |
HS Code | 29350090 |
pure white crystals. Melting point 183~184 ℃ (decomposition), relative density (25 ℃) is 1. 574, vapor pressure (25 ℃) is 4.52 × 10-2PA. Dissociation constant pK. = 4. The solubility in organic solvents at 25 °c is: dichloromethane 12. 8g/L, acetone 7. 6g/L, acetonitrile 2.5g/L, ethyl acetate 2. 2G/L, xylene 400mg/L; Solubility in water is 3. 8mg/L (pH 7), 67mg/L (pH 6.1), 5mg/L (pH -5.1), octanol/water distribution coefficient is 0. 05.
first, 2 monochloro imidazo [1,2-a] pyridine-3-sulfonamide is prepared, then the mixture of the compound and triethylamine is added to dichloromethane, and the reaction is carried out Dropwise with phenyl chloroformate, methanesulfonic acid and 2-amino -4,6-= methoxypyrimidine were added sequentially to continue the reaction, and imidazosulfuron was obtained by treatment.
used as herbicide. Through the root absorption, transport to the whole plant, the key enzyme of branched chain amino acid biosynthesis-acetolactate synthase, has a strong inhibitory effect. It can inhibit the growth of the tip buds of weeds, prevent the growth and development of roots or seedlings, and make them die gradually. Can control most of the annual and perennial broadleaved weeds and Cyperaceae weeds, such as cow felt, Arrowhead, cyperus, cress, Humulus scandens, can also control malignant weeds, such as wild arrowheads.