carnosine, molecular structures, dipeptide molecule, 3d model, structural chemical formula and atoms with color coding

carnosine molecular structure chemical formula model c9h14n4o3 dipeptide molecule atom hydrogen nitrogen oxygen carbon bond muscle threedimensional acid brain aging laboratory chemistry drug ring biochemistry science composition medicine human ball atomic skeletal structural substance chain drawing health illustration compound species element symbol antioxidant line icon organic atherosclerosis flat reactive structures atoms color coding coding