perfluorooctanesulfonic acid molecule 3d, molecular structure, ball and stick model, structural chemical formula pfos

perfluorooctanesulfonic acid pfos perfluorooctanesulfonate perfluorosulfonic molecule molecular structure chemical formula 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 ball stick structural pfos