👉 Pyrethrin is a chemical compound that is commonly found in plants and some animals. It is also known as pyrrolidone, a member of the pyrimidine family. Pyrethrin has been used for centuries by humans to treat various ailments due to its ability to kill insects and other pests. Pyrethrin is a naturally occurring pigment that is produced by many plants during their growth cycles. It can be found in the leaves, stems, and flowers of many plants