| Acido perfluorooctanoico (PFOA) | Acido perfluoroundecanoico (PFUnDA) | Acido perfluorotridecanoico (PFTrDA) | Acido Perfluorotetradecanoico (PFTeDA) |
| Acido Perfluorotetradecanoico (PFTeDA) | Acido Perfluoropentanoico (PFPeA) | Perfluorohexil sulfonato (PFHxS) | Acido Perfluorohexanoico (PFHxA) |
| Acido Perfluorohexanoico (PFHxA) | Acido Perfluoroheptanoico (PFHpA) | Acido Perfluorododecanoico (PFDoDA) | Acido Perfluorodecanoico (PFDA) |
| Acido Perfluorodecanoico (PFDA) | Acido perfluorononanoico (PFNA) | Perfluorobutil sulfonato (PFBS) | Acido Perfluorobutanoico (PFBA) |
| Acido Perfluorobutanoico (PFBA) | Perfluorooctanosulfonamida (PFOSA) | Perfluorooctano sulfonato (PFOS) |