| αKG | α-ketoglutarate |
| BPO | bromoperoxidase |
| CLEA | cross-linked enzyme aggregate |
| CPO | chloroperoxidase |
| FDA | 5′-fluoro-5′deoxyadenosine |
| Fhal, FDH | flavin-dependent halogenase |
| FlA | fluorinase A |
| g | gasous |
| Hal | halogen |
| HOX | hypohalous acid |
| HPO | haloperoxidase |
| MCD | monochlorodimedone |
| Mn | elemental metal |
| MOH | metal cation hydroxid salts |
| NBS | N-bromo-succinimde |
| NCS | N-chloro-succinimide |
| NRPS | non-ribosomal protein synthesis |
| NXS | N-halogen-succinimide |
| PKS | polyketide |
| PVC | polyvinyl chlroide |
| s | solid |
| SAM | S-adenosyl methionine |
| X | halide ion |
| X2 | molecular halogen |
| Y | non-halogen heteroatom |