N,N-Diethyl-m-toluamide, commonly referred to as DEET and listed under CAS number 134-62-3, is a widely used chemical compound known for its potent insect-repelling properties. This substance is a key ingredient in many insect repellent products designed to protect against mosquitoes, ticks, fleas, and other biting insects. DEET functions by interfering with the sensory mechanisms insects use to locate humans, effectively masking the chemical signals that attract them. Available in various forms such as sprays, lotions, and wipes, DEET is used to treat skin, clothing, and outdoor gear, providing comprehensive protection in environments where insect bites are a concern. It is especially valuable in preventing bites that can lead to serious diseases like malaria, dengue fever, and Lyme disease. DEET is also widely employed in military and occupational settings to safeguard individuals in high-risk areas. Public health programs often distribute DEET-containing products to mitigate the spread of insect-borne illnesses. Renowned for its effectiveness and safety when used properly, DEET remains a cornerstone in the field of insect repellents.
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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