Chlorbicyclen is an obsolete insecticide Little data is available regarding its environmental fate or ecotoxicology. It has a moderate oral mammalian toxicity.
Chlorbicyclen (Alodan) is organic chloride insecticide[1].
ChEBI: Chlorbicyclen is an organochlorine compound.
Chlorbicyclen, like other organochlorine insecticides of its era, would have been produced through stepwise chlorination and cyclisation reactions involving substituted bicyclic hydrocarbons, followed by controlled addition of chlorine across reactive double bonds to create the characteristic poly chlorinated bicyclic structure. Industrial production of organochlorines typically relied on chlorine gas or sulfuryl chloride, catalysts such as iron salts, and solvent systems that allowed heat controlled halogenation. After chlorination, the crude product would be purified by distillation or recrystallisation to yield technical grade chlorbicyclen for later formulation.
Cyclodiene insecticides work by blocking gamma-aminobutyric acid (GABA)-gated chloride channels, leading to hyperexcitation of the nervous system in insects
A poison by ingestion.Moderately toxic by skin contact. When heated todecomposition it emits toxic vapors of Cl-.
[1] Nthabiseng Motshabi, et al. Evaluation of organochlorine pesticide residues in Beta vulgaris, Brassica oleracea, and Solanum tuberosum in Bloemfontein markets, South Africa. Food Sci Nutr. 2021 Jul 29;9(9):4770-4779. DOI:
10.1002/fsn3.2375
