Molecular Formula | C14H21NOS |
Molar Mass | 251.39 |
Density | 1.0696 (rough estimate) |
Melting Point | 25°C |
Boling Point | 129 °C |
Flash Point | 100°C |
Appearance | neat |
BRN | 4804364 |
pKa | -1.22±0.70(Predicted) |
Storage Condition | 2-8℃ |
Refractive Index | 1.7500 (estimate) |
Physical and Chemical Properties | The pure product is a colorless transparent liquid, and the original medicine is a yellow transparent liquid with freezing point lower than -10 ℃, boiling point 129 ℃(33Pa), vapor pressure 6.93mPa(25 ℃), and density 1.042g/cm3. Solubility in water at 20 ℃ 13.2mg/l, soluble in acetone, chlorobenzene, ethanol, kerosene and xylene. Kow 44500(25 ℃). Stability: no degradation at 52 ℃ for 60 days, DT50 at pH7 and 25 ℃ for 25 days, DT5010 ~ 35 days in soil. |
Risk Codes | R22 - Harmful if swallowed R43 - May cause sensitization by skin contact R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S24 - Avoid contact with skin. S37 - Wear suitable gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 3082 9/PG 3 |
WGK Germany | 2 |
RTECS | FD3835000 |
HS Code | 29302000 |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
toxicity | Acute Oral LD501820 ~ 1958mg/kg in rats, acute percutaneous LD50>2000mg/kg in rabbits. Has a slight irritating effect on the skin and eyes, but does not cause skin allergies. Rats with acute inhalation of LC50(4 hours) >4.7mg/L, rats fed the test for two years without the effect of the dose of 0.5mg/kg · day, the non-effective dose in mice fed for 18 months was> 65mg/kg · day, 3135 mg/kg in wild ducks fed for 5 days, and 1780mg/kg in quails. The result of Ames test was negative. It had no teratogenic effect on rats and rabbits, no effect on the reproduction of rats, and no tumorigenic effect on mice. Fish poisoning LC50(96 hours): Rainbow Trout 1.7mg/L, blue gill fish 4.2mg/L. |
mode of action and mechanism of action | , low volatility (25 degrees C, SC- 0574 of the vapor pressure of 6.67mPa, bacteria to kill 4.5), so do not need mixed soil. Sensitive grass weed seedlings, the typical symptoms of damage by thiocarbamate compounds are dark green, plant distortion, inhibit the growth of seedlings and roots, and prevent the leaves from the bud sheath, for plants with more than 4 to 5 true leaves, severe necrosis occurs in and around the meristem. The results of greenhouse experiments such as soil treatment and hydroponics showed that the selectivity of benserazide to the pre-emergence application of cereal crops depended on the "depth" protection. This is the same as that reported for oat bezoar (Fryer Makepeace,197). The analysis results and bioassay results showed that due to the low leaching of S0574, it was necessary to prevent the cereal crop seedlings from coming into contact with the buds in the soil.|
control object and method of use | this medicine takes 3 ~ 4kg(ai)/ha is applied to winter wheat, winter barley and rye fields before or after Bud, which can effectively control Gramineae weeds and broad-leaved weeds, especially pig, rat tail, ryegrass, Kentucky bluegrass, white mustard, Strand, such as the genus of Borna. Can also be used for broad bean field. |
preparation method | N,N-dipropylcarbamoyl chloride and benzyl mercaptan in aqueous sodium hydroxide solution, the reaction was carried out at 20-60 ° C. To obtain benzathine Danes. |
analytical method | Both Product Analysis and Residue determination were performed by GC. |