Manganese(II) chloride, plays an important role in the production of dry cell batteries. It is also used as a starting material to the methylcyclopentadienyl manganese tricarbonyl, which has antiknock property. Further, it is used in the formation of an active Manganese(0) species useful for radical cyclization. It is also used in ³¹P-NMR to determine the size and lamellarity of phospholipidvesicles reactions.

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