Name | Mepronil |
Synonyms | kco-1 b1-2459 BASITAC Mepronil BASITAC(R) MEPRONIL PESTANAL 3'-Isopropoxy-2-methylbenzanilide N-(3-Isopropoxyphenyl)-2-methylbenzamide 2-METHYL-N-(3-PROPAN-2-YLOXYPHENYL)-BENZAMIDE 2-methyl-N-[3-(propan-2-yloxy)phenyl]benzamide 2-methyl-n-(3-(1-methylethoxy)phenyl)benzamide 2-methyl-n-(3-(1-methylethoxy)phenyl)-benzamid Benzamide, 2-methyl-N-(3-(1-methylethoxy)phenyl)- |
CAS | 55814-41-0 |
InChI | InChI=1/C17H19NO2/c1-12(2)20-15-9-6-8-14(11-15)18-17(19)16-10-5-4-7-13(16)3/h4-12H,1-3H3,(H,18,19) |
Molecular Formula | C17H19NO2 |
Molar Mass | 269.34 |
Density | 1.0483 (rough estimate) |
Melting Point | 84-89°C |
Boling Point | 412.48°C (rough estimate) |
Flash Point | 159.7°C |
Water Solubility | 12 mg l-1(20 °C) |
Solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Very Slightly) |
Vapor Presure | 5.6 x 10-5 Pa (20 °C) |
Appearance | neat |
Color | White |
BRN | 2381749 |
pKa | 13.10±0.70(Predicted) |
Storage Condition | 0-6°C |
Refractive Index | 1.5400 (estimate) |
Physical and Chemical Properties | Pure white crystals. m. P. 92-93 °c, B. P. 186 °c/10.665. The vapor pressure is 0.056 × 10-3PA, the flash point is 225 ° C., and the relative density is 1.222(15 ° C.). Solubility at 20 ° C: acetone> 500g/L, methanol> 500g/L, benzene 28.2g/L, hexane 1.1g/L, water 12.7mg/L, partition coefficient 4570. It is stable to light and heat, and stable in water, weak acid and weak base (pH 5~9) medium, but it is easy to hydrolyze in strong base medium. |
Use | Systemic fungicide with special biological activity for Basidiomycetes. Can effectively control rice sheath blight, wheat stripe rust, cotton damping off, can also be used to control pear brown spot disease, wheat snow rot, potato, tomato sclerotium disease, pear, chrysanthemum rust, cucumber seedling blight. Such as control of rice sheath blight with 20% wettable powder to water 400 times liquid foliar spray (active ingredient 7.5/100 m2 ), control effect of 84%, or with 3% powder 300 ~ 405kg powder. Control of wheat rust per hundred square meters with 75% wettable powder 20~40g on the water spray, or with 3% powder 300~405g powder. The pesticide can be used for seed treatment or soil treatment in the prevention and control of cotton seedling damping off and cucumber seedling damping off. |
WGK Germany | 2 |
RTECS | CV5581700 |
HS Code | 29242990 |
Toxicity | LD50 oral in rabbit: > 10gm/kg |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
toxicity | rat acute oral LD5010000mg/kg, rabbit acute percutaneous LD50 10000mg/kg, there was no irritation to rabbit skin and eyes. The subacute non-effective dose was 43mg/kg per day in male rats and 5.2mg/kg per day in females. The chronic non-effective dose was 5.9mg/kg in male rats and 72.9mg/kg in female rats; 50mg/kg in male dogs and 5 mg/kg in female dogs. Carp LC50 8.6mg/L(48h), 8.0mg/L(96H), black carp LC5010mg/L. Acute oral LD50>0.1mg/Bee. |
Use | systemic fungicide with special biological activity against Basidiomycetes. Can effectively control rice sheath blight, wheat stripe rust, cotton damping off, can also be used to control pear brown spot disease, wheat snow rot, potato, tomato sclerotium disease, pear, chrysanthemum rust, cucumber seedling blight. Such as control of rice sheath blight with 20% wettable powder to water 400 times liquid foliar spray (active ingredient 7.5/100 m2 ), control effect of 84%, or with 3% powder 300 ~ 405kg powder. Control of wheat rust per hundred square meters with 75% wettable powder 20~40g on the water spray, or with 3% powder 300~405g powder. The pesticide can be used for seed treatment or soil treatment in the prevention and control of cotton seedling damping off and cucumber seedling damping off. Funing is a fungicide, which has special effects on basidiomycetes, and can effectively control rice sheath blight, wheat root rot, potato Rhizoctonia and Phytophthora Blight, pear rust, cotton damping off, etc. Long residual period, no damage, can be applied in the water surface, soil, can also be used for seed treatment. At the same time, it is also a good wood preservative, fungicide. a systemic fungicide with special biological activity against Basidiomycetes. Can effectively control rice sheath blight, wheat stripe rust, cotton damping off, can also be used to control pear brown spot disease, wheat snow rot, potato, tomato sclerotium disease, pear, chrysanthemum rust, cucumber seedling blight. Such as control of rice sheath blight with 20% wettable powder to water 400 times liquid foliar spray (active ingredient 7.5/100 m2 ), control effect of 84%, or with 3% powder 300 ~ 405kg powder. Control of wheat rust per hundred square meters with 75% wettable powder 20~40g on the water spray, or with 3% powder 300~405g powder. The pesticide can be used for seed treatment or soil treatment in the prevention and control of cotton seedling damping off and cucumber seedling damping off. |
production method | from M-aminophenol, acetic anhydride, isobromopropane, O-methyl benzoic acid, phosphorus trichloride by N-acetyl M-aminophenol preparation, preparation of N-acetyl M-isopropyloxyaniline, preparation of M-isopropyloxyaniline, preparation of amanin. preparation method-preparation of N-acetyl M-aminophenol after mixing 25g(0.23mol) M-aminophenol, 18.0g(0.30mol) acetic acid, 25g(0.264mol) acetic anhydride and 25ml water, it was dissolved by stirring, heated in an oil bath for 1H, cooled to 5 ° C., filtered, washed with water and dried to give 23g of product, yield 66.5%. Preparation of N-acetyl-m-isopropoxyaniline after mixing 30.2G (0.2mol) of N-acetyl-m-aminophenol, 0.22g (mol) of sodium hydroxide and of ethanol, then, 0.26g (80% mol) of isopropane bromide was added, heated to reflux for 5H, left to room temperature, filtered to remove solid sodium bromide, distilled off 98% ethanol, cooled and filtered to give 38g of product in yield. Preparation of M-isopropoxyaniline after mixing 38.6g (0.2mol) of N-acetyl M-isopropoxyaniline, a certain amount of 35% hydrochloric acid and of water, react at 100~110 ℃ for 2H, then neutralize to Neutral with 30% sodium hydroxide aqueous solution, separate oil layer, extract water layer with ether benzene, merge oil layer, dry with magnesium sulfate, distill off ether, and then distill under reduced pressure, the product was obtained in 25.5g with a yield of 85%. Preparation of O-toluoyl chloride by O-Toluic acid and thionyl chloride chlorination reaction to produce O-toluoyl chloride, this process is mature. Synthesis of rust-killing amine 15.1G (0.1mol) of M-isopropoxyaniline, 0.05 mL of acetone and 4.2G (mol) of sodium carbonate were mixed and then cooled to -5 ~-3 ℃ with stirring, 15.5g (0.1mol) of O-toluoyl chloride was slowly added dropwise and reacted at 0 ° C. For 2H. The sodium chloride was removed by filtration, and the mother liquor was distilled off with acetone, washed with water, recrystallized and dried to give 26g of the product. The yield was 96.37%. Preparation Method two-amino-component preparation nitrobenzene is sulfonated by fuming sulfuric acid, then neutralized to form M-nitrobenzenesulfonic acid sodium, reduced to form M-aminobenzenesulfonic acid sodium, and then alkali-fused and acidified to generate M-aminophenol. Preparation of 2-methyl-N-(3 '-hydroxyphenyl) benzamide O-Toluic acid was reacted with M-aminophenol in dry benzene solvent in the presence of phosphorus trichloride, 2-methyl-N-(3'-hydroxyphenyl) benzamide was obtained. Synthesis of rust-killing amine 2-methyl-N-(3 '-hydroxyphenyl) benzamide and 2-chloropropane were reacted in sodium hydroxide methanol solution to prepare rust-killing amine. Preparation Method Three |
category | pesticide |
toxicity grade | low toxicity |
Acute toxicity | oral-rat LD50: 10000 mg/kg; Oral-mouse LD50: 10000 mg/kg |
flammability hazard characteristics | flammable; Toxic NOx gas |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
extinguishing agent | dry powder, foam, sand |