👉 Pieridine is a chemical compound composed of two fused hydrogen atoms, found in several species. It is a colorless, odorless, and tasteless gas that has a strong odor when it reacts with other gases. Pieridine is commonly used as an additive to some types of plastic materials, especially for the manufacturing of high-density polyethylene (HDPE) bottles, which are used in food packaging. It also serves as a component of synthetic fibers such as polyester and nylon.