perfluorobutanoic acid molecule, perfluoroalkyl carboxylic acid molecular structure, 3d model van der waals

perfluorobutanoic acid pfba perfluoroalkyl carboxylic molecule molecular structure chemical formula isolated model c4hf7o2 atom chemistry composition compound heptafluorobutyric hfba organofluorine perfluorinated pfas science scientific atomic drawing skeletal icon line flat organic carbon oxygen hydrogen abstract fluorine van der waals waals