| ES-5640 | Perfluorobutyric acid (MPFBA), sodium salt (13C3, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluoropentanoic acid (MPFPeA), sodium salt (13C5, 99%) | 2483735-37-9 | 1 μg/mL |
| ES-5640 | Perfluorohexanoic acid (MPFHxA), sodium salt (13C6, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluoroheptanoic acid (MPFHpA), sodium salt (13C7, 99%) | 2483735-20-0 | 1 μg/mL |
| ES-5640 | Perfluoro-n-octanoic acid (MPFOA) (13C8, 99%) | 1350614-84-4 | 1 μg/mL |
| ES-5640 | Perfluorononanoic acid (MPFNA) (13C9, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluorodecanoic acid (MPFDA) (13C9, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluoroundecanoic acid (MPFUdA), sodium salt (13C9, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluorododecanoic acid (MPFDoA), sodium salt (13C12, 99%) | 2483735-15-3 | 1 μg/mL |
| ES-5640 | Perfluorotetradecanoic acid (MPFTeDA) (13C2, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluorohexadecanoic acid (MPFHxDA) (13C2, 99%) | NA | 1 μg/mL |
| ES-5640 | Perfluorobutanesulfonate (MPFBS), potassium salt (13C4, 99%) | NA | 1 μg/mL |
| ES-5640 | Potassium perfluoro-1-hexanesulfonate (MPFHxS) (13C6, 99%) | 2687960-06-9 | 1 μg/mL |
| ES-5640 | Sodium perfluoro-1-octanesulfonate (MPFOS) (13C8, 99%) | NA | 1 μg/mL |
| ES-5640 | 1H,1H,2H,2H-Perfluorohexanesulfonate (M-4:2FTS), sodium salt (13C2, 99%; D4, 98%) | NA | 1 μg/mL |
| ES-5640 | 1H,1H,2H,2H-Perfluorooctanesulfonate (M-6:2FTS), sodium salt (13C2, 99%; D4, 98%) | NA | 1 μg/mL |
| ES-5640 | 1H,1H,2H,2H-Perfluorodecanesulfonate (M-8:2FTS), sodium salt (13C2, 99%; D4, 98%) | NA | 1 μg/mL |
| ES-5640 | 1H,1H,2H,2H-Perfluorododecanesulfonate (M-10:2FTS), sodium salt (13C2, 99%; D4, 98%) | NA | 1 μg/mL |
| ES-5640 | Perfluorooctanesulfonamide (MPFOSA) (13C8, 99%) | NA | 1 μg/mL |
| ES-5640 | N-Methylperfluorooctanesulfonamide (d-N-MeFOSA) (D3, 98%) | 936109-37-4 | 1 μg/mL |
| ES-5640 | N-Methylperfluorooctanesulfonamidoacetic acid (d3-N-MeFOSAA) (D3, 98%) | 1400690-70-1 | 1 μg/mL |
| ES-5640 | N-Ethylperfluorooctanesulfonamidoacetic acid (d5-N-EtFOSAA) (D5, 98%) | 1265205-97-7 | 1 μg/mL |
| ES-5640 | Tetrafluoro-2-(heptafluoropropoxy)propanoic acid (MHFPO-DA) (“GenX”) (13C3, 99%) | NA | 1 μg/mL |
| ES-5640 | | | |
| ES-5640 | *Gravimetric concentration is based on the free acid, where applicable | | |
