21892-80-8 - Names and Identifiers
21892-80-8 - Physico-chemical Properties
Molecular Formula | C8H7NO2
|
Molar Mass | 149.15 |
Density | 1.2517 (rough estimate) |
Melting Point | 82-86 °C |
Boling Point | 270.21°C (rough estimate) |
Flash Point | 97.8°C |
Vapor Presure | 0.0433mmHg at 25°C |
BRN | 131018 |
pKa | -0.47±0.20(Predicted) |
Refractive Index | 1.5320 (estimate) |
Physical and Chemical Properties | Melting Point: 69 - 74 ℃
|
21892-80-8 - Risk and Safety
Hazard Symbols | Xn - Harmful

|
Risk Codes | 22 - Harmful if swallowed
|
Safety Description | 24/25 - Avoid contact with skin and eyes.
|
WGK Germany | 3 |
RTECS | DM5275450 |
HS Code | 29349990 |
21892-80-8 - Introduction
3-methyll-2-benzoxazolinonre, chemical formula C9H7NO2, is an organic compound. It is a white to light yellow solid.
Nature:
-Density: 1.33g/cm³
-Melting point: 64-66 ° C
-Boiling point: About 290 ° C
-Flammability: combustible, toxic gas will be produced when burning
-Solubility: Soluble in alcohols, ethers and chlorinated hydrocarbons, insoluble in water
Use:
3-methyll-2-benzoxazolinonre is often used as an intermediate for pesticides or fungicides, and is widely used in agricultural fields, such:
-Prevention and control of crop diseases, such as sheath blight, smut, etc.
-Inhibit weed growth and protect crops
Method:
3-methyll-2-benzoxazolinonre can be prepared by a variety of methods, among which the commonly used methods are:
-Condensation of 2-aminobenzoate with amide in the presence of NaOH to generate 3-Methyl-2-benzoxazolinonre.
Safety Information:
3-methyll-2-benzoxazolinonre has certain toxicity, so you need to pay attention to safety when using it. Here are some safety considerations:
-Avoid inhalation, contact with skin and eyes
-Wear appropriate protective gloves, glasses and masks during operation
-Avoid contact with combustibles, strong oxidants and other substances to prevent fire or explosion
-Store in a cool, ventilated place, away from fire and flammable materials
-If exposed to the compound, rinse immediately with plenty of water and seek timely medical help if necessary
Please note that the above information is for reference only. Please refer to the relevant chemical safety data sheets and operating specifications for specific safety operation details and conditions of use.
Last Update:2024-04-10 22:29:15