Chemical NamePerfluorobutanesulfonate
Synonym(s)1-Butanesulfonato, 1,1,2,2,3,3,4,4,4-nonafluoro-, ion(1-) | Nonafluoro-1-butanesulfonate | Nonafluorobutane-1-sulfonatato | Nonafluorobutane-1-sulfonate | PFBS ion | Perfluorobutane sulfonate | Perfluorobutanesulfonate | Perfluorobutyl sulfonate
De minimis Limit %1
M,P/OU Threshould (lb)100/100
Listing TypeIndividually listed chemical
Effective Date01-JAN-22
Chemical QualifierNo
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceYes

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added2022No proposed rule for this action87 FR 42651 (7/18/2022)
Structural image
Structural representation of Perfluorobutanesulfonate