Aha kemịkal nke M221 bụ phosphate acrylate.Ọ bụ mmiri mmiri na-acha odo odo na-acha odo odo nwere ezigbo nrapado na ire ọkụ na rọba na ihe igwe.A na-atụ aro ka eji ya na ink mgbochi ịgbado ọkụ, metal, osisi na plastik, mkpuchi ikuku electroplating na ubi ndị ọzọ.
A na-ejikarị phosphate ester eme ihe dị ka plasticizer ọkụ maka resin PVC na plastik dị iche iche, roba sịntetik na ihe polymer.Ihe enyemaka nhazi nke phosphate ester nwere ezigbo ndakọrịta na polyvinyl chloride, acetic acid, nitrocellulose, polystyrene, polyethylene na ndị ọzọ polyolefin resins na roba sịntetik.