perfluorooctanesulfonic acid molecular structure 3d, flat model, pfos, structural chemical formula view from a microscope

perfluorooctanesulfonic acid pfos perfluorooctanesulfonate perfluorosulfonic molecule molecular structure chemical formula 3d model c8hf17o3s atom pollutant chemistry compound toxic blood plasma fabric poison disruption organic persistent carbon oxygen science atomic drawing hydrogen skeletal protector icon line sulfur disruptor endocrine fluorosurfactant neonatal organofluorine perfluorooctane precursor sulfonate research scientific fluorine