Maneb
Maneb is a fungicide and a polymeric complex of manganese with the ethylene bis(dithiocarbamate) anionic ligand. Applications
It can be also used to create a toxin-based animal model of Parkinson's disease, usually in primates. Regulation
It was included in a pesticide ban proposed by the Swedish Chemicals Agency  and approved by the European Parliament on January 13, 2009. See also
Metam sodium - A related dithiocarbamate salt which is also used as a fungicide. Zineb - ethylene bis(dithiocarbamate) with zinc instead of manganese. Mancozeb - A common fungicide containing Zineb and Maneb. References

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Fungicides
Manganese(II) compounds
Polymers
Dithiocarbamates