Phosphoric ether

Phosphoric ether, Ethyl Phosphate or TEP,C6H15O4P, is a substance used as fire retardant, strength agent of rubber and plastic among vinyl polymers and unsaturated polyesters, and the material of pesticides, aging and steady anent of resin.

History
It was studied for the first time by French chemist Jean Louis Lassaigne in the early 1800s.