folic acid molecular structure, 3d model molecule, vitamin b9, structural chemical formula view from a microscope

folate folic acid vitamin molecular structure model chemical formula molecule dna neural biochemistry chemistry drug pregnancy atom biology science disease tube skeletal health supplement vegetable mineral illustration nutrient compound anemia dietary healthy spinach organic antifolate folacin folinic glutamate glutamic homocysteine leucovorin methotrexate pteroyl vitamine structural view from microscope microscope