Furanone Acetate（CAS#4166-20-5）
| Hazard Symbols | Xn – Harmful |
| Risk Codes | 22 – Harmful if swallowed |
| Safety Description | S36 – Wear suitable protective clothing. S24/25 – Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| HS Code | 29321900 |
Introduction
4-Acetoxy-2,5-dimethyl-3-furanone (also known as DEET) is a commonly used mosquito repellent. The following is an introduction to its nature, use, preparation method and safety information:
Quality:
- Appearance: Colorless or yellowish liquid
- Soluble: Soluble in alcohols, ethers and ketones, insoluble in water
Use:
- DEET is mainly used as a mosquito repellent, which can effectively repel a variety of mosquitoes, ticks and other insects.
- DEET is also used to prevent other insect bites, such as lice, fleas, and ticks.
Method:
4-Acetoxy-2,5-dimethyl-3-furanone can be prepared by the following steps:
1. 2,5-Dimethyl-3-furanone is reacted with acetic anhydride to produce 4-acetoxy-2,5-dimethyl-3-furanone.
Safety Information:
- Avoid contact with eyes, mouth, and open wounds.
- DEET is irritating and prolonged contact with the skin may cause irritation, allergies, or dry skin.
- Avoid direct contact with plastics, man-made fibers, etc., which can cause corrosion.
- Hands and exposed skin should be thoroughly cleaned after use. If discomfort occurs, discontinue use immediately and consult a physician.
