Table 1.
Chemical characteristics of individual perfluoroalkyl substances considered within this Opinion and their uses as derived from Buck et al. (2011)
| Acronym | Chemical name | CAS number | Structural formula | Molecular weight | Uses |
|---|---|---|---|---|---|
| Perfluoroalkyl carboxylic acids (PFCAs) | |||||
| PFBA | Perfluorobutanoic acid | 375‐22‐4 |
|
214.04 | Surfactant |
| PFPeA | Perfluoropentanoic acid | 2706‐90‐3 |
|
264.05 | Surfactant |
| PFHxA | Perfluorohexanoic acid | 307‐24‐4 |
|
314.05 | Surfactant |
| PFHpA | Perfluoroheptanoic acid | 375‐85‐9 |
|
364.06 | Surfactant |
| PFOA | Perfluorooctanoic acid | 335‐67‐1 |
|
414.07 | Surfactant |
| PFNA | Perfluorononanoic acid | 375‐95‐1 |
|
464.08 | Surfactant |
| PFDA | Perfluorodecanoic acid | 335‐76‐2 |
|
514.08 | Surfactant |
| PFUnDA | Perfluoroundecanoic acid | 2058‐94‐8 |
|
564.09 | Surfactant |
| PFDoDA | Perfluorododecanoic acid | 307‐55‐1 |
|
614.10 | Surfactant |
| PFTrDA | Perfluorotridecanoic acid | 72629‐94‐8 |
|
664.11 | Surfactant |
| PFTeDA | Perfluorotetradecanoic acid | 376‐06‐7 |
|
714.11 | Surfactant |
| PFPeDA | Perfluoropentadecanoic acid | 18024‐09‐4 |
|
764.12 | Surfactant |
| PFHxDA | Perfluorohexadecanoic acid | 67905‐19‐5 |
|
814.13 | Surfactant |
| PFODA | Perfluorooctadecanoic acid | 16517‐11‐6 |
|
914.15 | Surfactant |
| Perfluoroalkane sulfonic acids (PFSAs) | |||||
| PFBS | Perfluorobutane sulfonic acid |
375‐73‐5/45187‐15‐3 [59933‐66‐3 as hydrate] |
|
300.10/299.09 [318.11] |
Surfactant |
| PFHxS | Perfluorohexane sulfonic acid | 355‐46‐4/ 108427‐53‐8 |
|
400.11/399.10 | Surfactant |
| PFHpS | Perfluoroheptane sulfonic acid | 375‐92‐8 |
|
450.12 | Surfactant |
| PFOS | Perfluorooctane sulfonic acid | 2795‐39‐3 (Potassium salt; 1763‐23‐1 (Acid) |
|
538.22 (Potassium salt) 500.13 (Acid) |
Surfactant |
| PFDS | Perfluorodecane sulfonic acid | 335‐77‐3 |
|
600.14 | Surfactant |
| Perfluoroalkane sulfinic acids (PFSIAs) | |||||
| PFOSI | Perfluorooctane sulfinic acid | 647‐29‐0 |
|
484.13 | Intermediate environmental transformation product |
| n:2 fluorotelomer alcohols (n:2 FTOHs) | |||||
| 8:2 FTOH | 8:2 Fluorotelomer alcohol | 678‐39‐7 |
|
464.12 | Major raw material for surfactant and surface production products |
| n:2 polyfluoroalkyl phosphoric acid esters (PAPs) | |||||
| 8:2 monoPAP | 8:2 Fluorotelomer phosphate monoester | 57678‐03‐2 |
|
544.10 | Surfactant and surface protection products |
| 8:2 diPAP | 8:2 Fluorotelomer phosphate diester | 678‐41‐1 |
|
990.20 | Surfactant and surface protection products |
| Perfluoroalkane sulfonamides (FASAs) | |||||
| FOSA | Perfluorooctane sulfonamide | 754‐91‐6 |
|
499.14 | Major raw material for surfactant and surface production products |
| N‐ethyl perfluoroalkane sulfonamides (EtFASAs) | |||||
| EtFOSA | N‐ethyl perfluorooctane sulfonamide | 4151‐50‐2 |
|
527.20 | Major raw material for surfactant and surface production products |
| N‐ethylperfluoroalkane sulfonamidoethanols (EtFASEs) | |||||
| EtFOSE | N‐ethyl perfluorooctane sulfonamidoethanol | 1691‐99‐2 |
|
571.25 | Major raw material for surfactant and surface production products |
| Perfluoroalkyl phosphate | |||||
| FC‐807 | Ammonium bis[2‐[N‐ethyl(heptadecafluorooctane)sulfonylamino]ethyl]phosphate | 30381‐98‐7 |
|
1,221.49 | Surfactant |