Understanding Propylene Oxide and Its Global Trade Significance Propylene oxide (PO), also known as methyloxirane or 1,2-epoxypropane, is a highly reactive, volatile organic compound that serves as a foundational chemical intermediate in modern manufacturing. With a molecular formula of C₃H₆O and CAS number 75-56-9, this colorless liquid is characterized by its slightly ether-like odor and extreme flammability. Its reactivity makes it indispensable for producing polyether polyols, propylene glycol, and a diverse array of specialty chemicals that feed into automotive, construction, furniture, and packaging industries. The global propylene oxide market represents a substantial and growing sector of the chemical economy. The market was valued at approximately USD 13.64 billion in 2025…