👉 Pyrethrine is a chemical compound that has been used for centuries by people in various cultures, primarily in traditional medicine. It is a white to yellowish-green liquid with a strong odor and its presence was first documented on a map of India around 2000 years ago. Pyrethrine is the active ingredient in several commonly used insect repellents. Pyrethrin is produced by fungi that produce a chemical compound called pyrethrin. The pyrethrin molecules