Procymidone
Procymidone
CAS: 32809-16-8
Molecular Formula: C13H11Cl2NO2
Procymidone - Names and Identifiers
Procymidone - Physico-chemical Properties
| Molecular Formula | C13H11Cl2NO2 |
| Molar Mass | 284.14 |
| Density | d25 1.42-1.46 |
| Melting Point | 166-167°C |
| Boling Point | 477.9±35.0 °C(Predicted) |
| Flash Point | >100°C |
| Water Solubility | 4.5 mg l-1 (25 °C) |
| Solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |
| Vapor Presure | 1.8 x 10-2 Pa (25 °C) |
| Appearance | neat |
| Color | Off-White to Pale Beige |
| BRN | 1539058 |
| pKa | -2.67±0.60(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.6100 (estimate) |
| Physical and Chemical Properties | pure white crystals, m.p.166 -166.5 °c, relative density 1.42-1.46 (25 °c), vapor pressure 1.05 × 10-2Pa (20 °c), 17.59 × 10-3Pa (25 °c). Soluble in acetone, chloroform, xylene, dimethylformamide, ethanol-soluble, insoluble in water. Under normal conditions, storage is stable for 2 years, stable under acidic conditions, easy to decompose in case of alkali, industrial products are white or light brown crystals. |
| Use | Inhalation of fungicides, both the role of protection and treatment, the use of low temperature and high humidity conditions, the effect is obvious. For rape, radish, eggplant, cucumber, cabbage, tomato, sunflower, watermelon, strawberry, onion, peach, cherry, flowers, grapes and other crops, control Botrytis cinerea and Sclerotinia sclerotiorum and Gray Star Disease, flower rot disease, brown rot, Vine blight, can also be used for thiophanate-methyl, carbendazim resistant original bacteria. Such as the prevention and control of gray mold, in the early flowering stage, flowering stage, fruit stage respectively with 50% wettable powder 1000~2000 times liquid spray; Prevention and control of Sclerotinia sclerotiorum in the early stage, spray with 50% ~ 1500 times of 2000 wettable powder, spray 1~2 times in the early flowering period and flowering period. For the prevention and control of tomato gray mold and other diseases in protected areas |
Procymidone - Risk and Safety
| WGK Germany | 2 |
| RTECS | GZ2150000 |
| HS Code | 29251900 |
| Toxicity | LD50 in male rats (mg/kg): 6800 orally, >10000 dermally (Jackson); LD50 in male, female rats (g/kg): 7.8, 9.1 orally (Mikami) |
Procymidone - Upstream Downstream Industry
| Raw Materials | 3,5-Dichloroaniline |
Procymidone - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | acute oral LD506800mg/kg in male rats, 7700 mg/kg in female rats, 7800 mg/kg in male mice and 9100 mg/kg in female mice. Acute percutaneous LD50>2500mg/kg in large and mouse. LD50>10000mg/kg was injected subcutaneously in rats and mice. LD50850mg/kg was injected intraperitoneally into male rats and 730 mg/kg into female rats. The subacute oral dose of 22.0 mg/kg in male mice and 83.5 mg/kg in female mice. Feeding rats with a dose of 1000mg/kg for 12 months, there was no weight loss, no abnormality in clinical blood chemical parameters, no abnormality in urine analysis, and no pathological changes in ophthalmic examination. No teratogenic and mutagenic effects were found in animal tests, and no adverse effects were found in three generations of reproductive tests. Carp LC50>10mg/L(48h), rainbow trout LC507.22 mg/L (96h), blue gill LC5010.25 mg/L (96h), safe for birds and bees. |
| use | systemic fungicide has both protective and therapeutic effects, and the use effect is obvious under low temperature and high humidity conditions. Used for rape, radish, eggplant, cucumber, cabbage, tomato, sunflower, watermelon, strawberry, onion, peach, cherry, flower, grape and other crops to prevent gray mold and sclerotinia and gray star disease, flower rot, Brown rot, vine blight, etc., can also be used to resist thiophanate-methyl and carbendazim. For the prevention and control of gray mold, spray 1000~2000 times of 50% wettable powder at the early flowering stage, full flowering stage, and fruiting stage; for the prevention and control of sclerotinia sclerotiorum, spray 1500~2000 times of 50% wettable powder at the early flowering stage and full flowering stage. It is a vegetable fungicide for protection The systemic fungicide has both protective and therapeutic effects, and the effect is obvious under low temperature and high humidity conditions. Used for rape, radish, eggplant, cucumber, cabbage, tomato, sunflower, watermelon, strawberry, onion, peach, cherry, flower, grape and other crops to prevent gray mold and sclerotinia and gray star disease, flower rot, Brown rot, vine blight, etc., can also be used to resist thiophanate-methyl and carbendazim. For the prevention and control of gray mold, spray 1000~2000 times of 50% wettable powder at the early flowering stage, full flowering stage, and fruiting stage; for the prevention and control of sclerotinia sclerotiorum, spray 1500~2000 times of 50% wettable powder at the early flowering stage and full flowering stage. Used to prevent and control diseases such as tomato gray mold in protected areas rape, cucumber sclerotium, grape, tomato, strawberry, cucumber gray mold, fruit tree brown spot, corn size spot, tomato early blight. |
| production method | preparation method 1 is made of methyl α-chloropropionate, methyl α-methacrylate and 3, 5-dichloroaniline as raw materials. First, methyl α-chloropropionate and α-methyl methacrylate were reacted to prepare 1, 2-dimethylcyclopropane-1, 2-diformate methyl, and then hydrolyzed to obtain 1, 2-Dimethylcyclopropane-1, 2-dicarboxylic acid. The above products are reacted with 3, 5-dichloroaniline to synthesize promethaniline. Preparation method Ethyl diα-methacrylate reacts with ethyl α-chloropropionate, potassium butanol, sodium hydroxide and acetic anhydride to prepare 1, 2-dimethylcyclopropane -1, 2-dicarboxylic anhydride. Then add the benzene solution of 3,5-dichloroaniline dropwise, precipitate the intermediate, stir for 30min after dropping, debenzene under reduced pressure, add acetic anhydride and anhydrous sodium acetate to the residue, heat at 100 ℃ for 30-60min, remove acetic acid and excess acetic anhydride, wash with dilute sodium hydroxide and water, and dry to obtain Pythium. M. p.165 ~ 167 ℃. |
| category | pesticide |
| toxicity classification | low toxicity |
| acute toxicity | oral-rat LD50: 7000 mg/kg; Oral-mouse LD50: 7800 mg/kg |
| flammability hazard characteristics | Combustion produces toxic nitrogen oxides and chloride gases |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
| fire extinguishing agent | dry powder, foam, sand |
Last Update：2024-04-09 15:16:49
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Raw Materials for Procymidone