Clomazone

Brief Introduction:
English Name: CLOMAZONE
Chemical Name: 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isooxazolone
Molecular Formula: C₁₂H₁₄ClNO₂
Molecular Weight: 239.7
Structural Formula:

Physicochemical Properties:
light brown viscous liquid, relative density: 1.192(20), vapor pressure: 19.2MPA(25); solubility: 1.1G/L water, easy soluble in propanone, ethanol, chloroform, cyclohexanone, dichloromethane, diformamide, heptane, methanol, toluene, etc. Stability: no loss one year at the room temperature, or 90 days at 50°C. Under the sunlight, its aqueous solution, DT50>30; in soil, DT5010 is 137 days. It is noncorrosive to carbon steel, stainless steel and polypropene, stable in acid and alkali medium(PH4.5-9.25). Its degradation is mainly decided by microbe. The chemical valid period is at least 6 months.

Toxicity:
Acute by oral for male rats, LD50: 2077MG/KG, for female rats, LD50: 1369MG/KG. Acute by skin for rabbits, 88LD50>2000mg/kg; Acute by oral for rats, LC50(4H)4.8MG/L. For dog, the adiaphorous dosage is 500mg/kgfeed when raised for one year. Acute by oral for partridge and widgeon, LD50>2150mg/kg; for fish, LC50(96H): rainbow trout 19MG/L, blue branchia sun fish, 34MG/L.

Preparation:
48%EC 90%TC 95%TC

Application:
It is a kind of oxazole type herbicide, mainly used to prevent and remove broad leaved weeds and gramineous weeds for soy bean field, also used in earth mixing treatment before sprouting or seeding for tapioca, corn, cole, sugar cane and baccy field, the use level is 0.1-1.0KGAI/HA. According to the type of soil, before seeding, sprouting or during young seedling period, using 0.84-1.4KGAI/HA can effectively prevent and remove broad leaved weeds and gramineous weeds. This product can inhibit the synthesis of isopentylene compounds, to inhibit the synthesis of carotene and chlorophyl.