Robuta

https://water.chemicalaid.com/contaminants.php/pfna
perfluorononanoic acidwatercontaminantinfo
https://www.sigmaaldrich.com/US/en/product/aldrich/394459
Aldrich-394459; Perfluorononanoic acid 0.97; CAS No.: 375-95-1; Synonyms: Heptadecafluorononanoic acid; Perfluorononanoic acid; Linear Formula: CF3(CF2)7COOH;...
perfluorononanoic acid