Reductive dechlorination is debasement of chlorinated regular blends by compound abatement with appearance of inorganic chloride particles by reductive dehalogenases. In a characteristic setting chlorine acts in like manner to various particles in the halogen compound game plan, and as needs be reductive dechlorination can be considered to fall inside a somewhat progressively broad class of natural reactions known as reductive dehalogenation reactions, in which the removal of a halogen substituent from a characteristic iota occurs with a coordinated extension of electrons to the molecule. This can be also divided into two sorts of reaction frames, the first, hydrogenolysis, is the superseding of the halogen molecule with a hydrogen particle. The second, vicinal diminishing (to a great extent called, dihaloelimination), incorporates the clearing of two halogen particles that are close by on a comparative alkane or alkene iota, inciting the game plan of an additional carbon-carbon security.

Reductive dechlorination is much of the time catalyzed by explicit kinds of minuscule creatures. To a great extent the bacterial species are significantly explicit for organochlorine breath and even a particular electron supplier, as by virtue of Dehalococcoides and Dehalobacter. In various models, for instance, Anaeromyxobacter, microorganisms have been isolated that are prepared for using a combination of electron providers and acceptors, with a subset of possible electron acceptors being organochlorines. These reactions depend upon a molecule which will all in all be commandingly searched for after by specific life forms, supplement B12.