1. Personal Insect Repellent Products:

This is the primary use of DEET. It works by interfering with the olfactory receptors of insects, effectively repelling mosquitoes, ticks, lice, flies, and other pests, thus preventing the diseases they transmit. The core active ingredient in most mosquito repellents, creams, and sprays on the market is DEET.

2. Additive in Daily Chemical Products:

DEET has good compatibility and is therefore widely added to various daily care products to enhance their insect-repellent function, such as mosquito-repellent perfumes, lotions, soaps, and shampoos.

3. Scientific Research and Entomology Studies:

In scientific research, DEET is an important tool compound for studying the behavioral responses of insects (especially mosquitoes) to chemical repellents. Scientists use it to investigate its volatility, environmental fate, and the molecular mechanisms affecting insect olfaction.

4. Model Compound in Pharmaceutical Development:

The physicochemical properties of DEET make it frequently used as a model compound in transdermal absorption studies and the development of controlled-release drug delivery systems, optimizing the effectiveness and duration of topical formulations.

5. Compound Insecticide/Repellent Formulations:

DEET is often combined with other insecticidal ingredients (such as permethrin, picaridin, etc.) in patented formulations, utilizing its synergistic effects to enhance repellent efficacy, extend protection time, or impart new insecticidal properties to the product.

6. Laboratory Standard Substance:

High-purity DEET is prepared into standard solutions and used as a working standard in laboratories for daily analysis and testing, method evaluation, and instrument calibration in quality control processes.