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Toluene diisocyanate (TDI) is widely used as a chemical intermediate in the production of polyurethane. TDI-induced asthma is related to its disturbance of acetylcholine activity in most affected workers, but the relevant mechanisms are unclear. Toluene diamine (TDA) is the main metabolite of TDI. TDI and TDA have in common the basic toluene structure. Toluene is an abused solvent affecting neuronal...
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