nicotinamide mononucleotide molecule, vitamin b3, molecular structure, 3d model van der waals

nicotinamide mononucleotide nmn vitamin betanmn molecule molecular structure chemical formula isolated model c11h15n2o8p atom compound composition ageing chemistry energy atomic skeletal flat laboratory antiaging mitochondria niacin pellagra precursor science illustration icon line nucleotide medical medicine research nad ribose lab scientific sirloin cell adenine van der waals