{"id":"S2017003851","label":"Perfluorooctane sulfonate","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2017003851","normalized_label":"perfluorooctane sulfonate","broader":["http://id.loc.gov/authorities/subjects/sh2016002484","http://id.loc.gov/authorities/subjects/sh85130716","http://id.loc.gov/authorities/subjects/sh90003526"],"aliases":["PFOS (Perfluorooctane sulfonate)","Perfluorooctane sulfonic acid","Perfluorooctanesulfonate","Perfluorooctanesulfonic acid"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2017003851","provider":"lcsh","revision":"c59c98dbf92e2d6c","taxonomy_revision":"f050b5d4780b1289","title":"Perfluorooctane sulfonate","url":"/topics/S2017003851","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4954113530902086660","address_version":"morton4x16-v1","coordinates":[0,480,58405,11264],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}