N,N-Diethyl-m-toluamide, also known as DEET, with the CAS number 134-62-3, is a widely recognized chemical used as an active ingredient in insect repellent products. DEET effectively deters insects such as mosquitoes, ticks, and flies by interfering with their sensory systems, making it difficult for them to locate humans. This compound is available in various forms, including sprays, lotions, and wipes, which can be applied directly to the skin or clothing. DEET is crucial for preventing bites from insects that can carry diseases like malaria, West Nile virus, and Lyme disease. Its use is common in outdoor activities, military operations, and professions that require prolonged exposure to insect-prone areas. Public health initiatives often include DEET-based repellents to reduce the risk of vector-borne illnesses. With decades of use demonstrating its reliability and safety, DEET continues to be a cornerstone in personal and community insect protection strategies.
Item
|
Specification
|
Appearance
|
Colorless or light yellow liquid |
Assay |
99%
|
Density at 25ºC | 0.992-1002 |
Refractive index at 25ºC | 1.520-1.524 |
Water% | ≤0.2 |
Color(Apha) | ≤100 |
Function:
The primary function of N,N-Diethyl-m-toluamide (DEET) is as an insect repellent. Its main role is to prevent biting insects, such as mosquitoes, ticks, fleas, and flies, from detecting and landing on the skin of humans or animals. DEET achieves this by interfering with the insect's olfactory receptors, which are responsible for detecting the chemical cues emitted by humans, such as carbon dioxide and body odor.
By masking or confusing these signals, DEET reduces the likelihood of insects landing on the treated surface and biting, thus providing protection against insect bites and the potential transmission of insect-borne diseases. DEET is not an insecticide, meaning it does not kill insects but rather repels them, making it a safer option for use on skin and clothing. This function makes DEET an essential component in various insect repellent formulations, offering reliable protection in both recreational and occupational settings.
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