etrasimod molecule 3d rendering, flat molecular structure with chemical formula and atoms color coding

etrasimod velsipity ulcerative colitis sphingosine1phosphate receptor modulator molecule molecular structure chemical formula 3d model c26h26f3no3 atom carbon chemistry disease health care medical medicine oxygen pharmaceutical research science treatment atomic hydrogen skeletal autoimmune compound drug pharmacology nitrogen sulfur organic immune cells system immunotherapy lymphopenia ms therapy multiple sclerosis myelin neurodegeneration neuroinflammation rems sphingosine spms