prostacyclin molecule, molecular structures, prostaglandin i2, 3d model, structural chemical formula and atoms with color coding

prostacyclin prostaglandin derivatives molecule molecular structure chemical formula model c20h32o5 atom chemistry illustration organic pulmonary drug lipid carbon oxygen atomic hydrogen icon flat eicosanoid epoprostenol science structural arachidonic acid human hormones pgl2 treprostinil vasodilator medicine biology medical pharmaceutical research biochemistry health hormone metabolism skeletal pharmacology structures atoms color coding coding