2-(1-methylpropyl)-phenomethylcarbamate
2-butylphenyl methylcarbamate
CAS: 3766-81-2
Molecular Formula: C12H17NO2
2-(1-methylpropyl)-phenomethylcarbamate - Names and Identifiers
| Name | 2-butylphenyl methylcarbamate |
| Synonyms | Hopcin HOPCIN(R) FENOBUCARB Fenobucarb 2-butylphenyl methylcarbamate 2-SEC-BUTYLPHENYLETHYLCARBAMATE 2-SEC-BUTYLPHENYL-N-METHYLCARBAMATE 2-(butan-2-yl)phenyl methylcarbamate 2-(1-methylpropyl)-phenomethylcarbamate 2-(1-Methylpropyl)phenyl methylcarbamate 2-(1-methylpropyl)phenol methylcarbamate |
| CAS | 3766-81-2 |
| EINECS | 223-188-8 |
| InChI | InChI=1/C12H17NO2/c1-4-9(2)10-7-5-6-8-11(10)15-12(14)13-3/h5-9H,4H2,1-3H3,(H,13,14) |
| InChIKey | DIRFUJHNVNOBMY-UHFFFAOYSA-N |
2-(1-methylpropyl)-phenomethylcarbamate - Physico-chemical Properties
| Molecular Formula | C12H17NO2 |
| Molar Mass | 207.27 |
| Density | 1.0681 (rough estimate) |
| Melting Point | 31.75°C |
| Boling Point | 346.3°C (rough estimate) |
| Flash Point | 11°C |
| Water Solubility | 89mg/L(22 ºC) |
| Vapor Presure | 0.00333mmHg at 25°C |
| Appearance | neat |
| Specific Gravity | 1.035 (30℃) |
| BRN | 2052332 |
| pKa | 12.24±0.46(Predicted) |
| Storage Condition | Sealed in dry,2-8°C |
| Refractive Index | 1.5220 (estimate) |
| Physical and Chemical Properties | The active ingredient content of the original medicine is 97%, when it is 20 ℃, it is colorless crystal, the liquid is light blue or light pink, it has aromatic smell, and the density is 1.050. Pure product melting point of 32 deg C, industrial melting point of 28.5-31 deg C; Boiling point of 130 deg C (0.33 9千帕,3 mmHg), steam pressure of 0.532 Pa (0.004 mmHg)(25 deg C). Insoluble in water, soluble in acetone, methanol, benzene and other organic solvents. It is unstable in alkaline and strong acid medium, stable in weak acid medium, and easy to decompose when heated. General processing for the preparation of emulsifiable concentrates. |
| Use | Low toxic pesticides, with a strong contact killing effect, and a certain stomach poison, fumigation and egg killing effect. Insecticidal quickly, but the residual effect is short, generally can only maintain 4-5 days. |
2-(1-methylpropyl)-phenomethylcarbamate - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24 - Avoid contact with skin. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN 2811 |
| WGK Germany | 3 |
| RTECS | FB5425000 |
| HS Code | 29224999 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
2-(1-methylpropyl)-phenomethylcarbamate - Introduction
This standard substance is mainly used for measuring instrument calibration, analytical method evaluation and quality control, as well as the content determination and residue detection of corresponding components in related fields such as food, hygiene, environment and agriculture. It can also be used for value traceability or as a standard liquid reserve solution. It is diluted step by step and configured into various standard solutions for work. 1. Sample Preparation This standard substance is made of Zhongdingwei pure product with accurate purity and fixed value as raw material, chromatographic acetone as solvent, and accurately configured by weight-volume method. Zhong Dingwei, English name: Fenobucarb,CAS number: 3766-81-2 2. traceability and determination method This standard substance takes the configuration value as the standard value, and uses high performance liquid chromatography-diode array detector (HPLC-DAD) to compare this batch of standard substances with quality control control samples to verify the preparation value. By using preparation methods, measurement methods and measuring instruments that meet the requirements of metrological characteristics, the traceability of the value of the standard substance is guaranteed. 3. characteristic measure value and uncertainty (see certificate for details) Number name standard value (ug/mL) Relative expansion uncertainty (%)(k = 2)BW10200 The uncertainty of the standard value of Zhongdingwei 1004 in acetone is mainly composed of raw material purity, weighing, constant volume, uniformity, stability and other uncertainty components. 4. uniformity test and stability inspection According to the JJF1343-2012 [General Principles and Statistical Principles of Standard Substance Setting], random sampling of sub-packed samples is carried out, uniformity test of solution concentration is carried out, and stability inspection is carried out. The results show that the standard material has good uniformity and stability. The standard substance is valid for 18 months from the date of setting the value. The development unit will continue to monitor the stability of the standard substance. If the value changes are found during the validity period, the user will be notified in time. 5. packaging, transportation and storage, use and precautions 1. Packaging: This standard substance is packed in borosilicate glass ampoules, about 1.2 mL/branch. When removing or diluting, the pipette quantity shall prevail. 2. Transportation and storage: ice bags should be transported, and extrusion and collision should be avoided during transportation; storage under freezing and dark conditions. 3. Use: Balance at room temperature (20±3 ℃) before unsealing, and shake well. Once the ampoule is opened, it should be used immediately and cannot be used as a standard substance after being fused again.
Last Update：2022-10-16 17:24:59
2-(1-methylpropyl)-phenomethylcarbamate - 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 LD50 of rats is 410~635 mg/kg, mice is 487~512 mg/kg, acute percutaneous LD50 of rats is more than 5000 mg/kg, mice is 4200 mg/kg, rabbits is 10250 mg/kg. Under the experimental conditions, the mutagenic effect was negative, no reproductive toxicity was found in rats (below 100mg/kg), and no teratogenic effect was found in rabbits [3mg/(kg d)]. Carp LC50 was 12.6mg/L (48h). |
| uses | carbamate insecticides have strong contact killing effect, as well as stomach poison, fumigation and egg killing effects. Quick effect, but short residual period. Mainly control rice planthopper, rice leafhopper and rice thrips, spray with 50% emulsifiable concentrate 1000~2000 times, or spray with 2% basa powder 300~375g/100m2. It also has good control effects on rice leaf roller, stinkbug, Chilo suppressalis and aphids. Carbamate insecticides are quick-acting on rice planthopper, black-tailed leafhoppers and rice stink bugs. They have a short duration and can also control cotton aphid and cotton bollworm. |
| production method | liquid phosgene is introduced into the toluene solution of o-sec-butylphenol below 0 ℃, and then sodium hydroxide solution is gradually added to prepare o-butylphenyl chloroformate (toluene solution). under rapid stirring, it is simultaneously dripped into the methylamine aqueous solution with the sodium hydroxide solution, and reacted at room temperature for 15min to generate sec-butylbenzene. Raw material consumption quota: 770kg/t of o-sec-butylphenol (97.5%), 650kg/t of phosgene, 390kg/t of monomethylamine (40%), 220kg/t of caustic soda (30%), 100kg/t of toluene and 10kg/t of hydrochloric acid (30%). alkylated phenol, 1 and n-butene are reacted under sulfuric acid catalysis with a ratio of 1:1.4(mol) and a reaction temperature of 134~136 ℃; AlCl3 can also be used as catalyst to continuously synthesize o-sec-butyl phenol in gas phase. Esterification cools toluene to below 0 ℃, passes in an appropriate amount of phosgene, then adds the distilled o-sec-butyl phenol, and drops the sodium hydroxide solution to control the reaction temperature to be less than 0 ℃, and the end pH value is 6~7 to obtain o-sec-butyl phenyl chloroformate. Ammonolysis First, o-sec-butyl phenyl chloroformate is cooled to -10 ℃, and monomethylamine and sodium hydroxide solution are added dropwise to make the temperature <0 ℃, the end pH value is 7~8, and the heat preservation is continued for 0.5h to make the reaction complete. Toluene is recovered by desolution to obtain the product sec-dingwei. |
| category | pesticide |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 350 mg/kg; Oral-mouse LD50: 173 mg/kg |
| flammability hazard characteristics | combustion produces toxic nitrogen oxide gas |
| 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 |
| occupational standard | TWA 5 mg/m3 |
Last Update：2024-09-05 11:09:40
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Multiple SpecificationsSpot supply
Product Name: Fenobucarb in Acetone Visit Supplier Webpage Request for quotationCAS: 3766-81-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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