N,N-Diethyl-m-toluamide, abbreviated as DEET and assigned CAS number 134-62-3, is a widely utilized chemical renowned for its potent insect-repelling qualities. DEET is highly effective at deterring a range of biting insects such as mosquitoes, ticks, and fleas, which can transmit diseases including malaria, dengue fever, and Lyme disease. The repellent action of DEET is due to its ability to interfere with the insects' sensory mechanisms, effectively masking the scents that attract them to humans.
DEET is featured in various product forms, including sprays, lotions, gels, and wipes, which are applied to the skin or clothing to offer protection. The effectiveness of DEET-based repellents is influenced by the concentration of DEET in the product, with higher concentrations providing extended protection suitable for longer periods or more intense insect exposure.
In addition to personal use, DEET is essential in professional and military settings, where it is used to safeguard personnel in environments with high insect activity. Public health initiatives also incorporate DEET-based products as part of their strategies to reduce the incidence of vector-borne diseases, particularly in regions with high disease transmission rates.
While DEET is considered safe when used according to the manufacturer’s instructions, it is important to follow application guidelines to avoid potential side effects, such as skin irritation. With a well-established track record of effectiveness and safety, DEET continues to be a vital component in insect repellent products, offering reliable protection against the discomfort and health risks associated with insect bites.
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Item
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Specification
|
|
Appearance
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Colorless or light yellow liquid |
| Assay |
99%
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| 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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