Linked from
The 14 pages that link to Potassium permanganate, each with the reason it gives.
Oxidizing agentBroader topic: It oxidizes many compounds and can serve as a redox titrant.
ManganeseBroader topic: Its high oxidation state makes it useful as a powerful oxidant.
Crown etherRelated: Crown ether complexation can dissolve this ionic oxidant in organic solvents.
PyrolusiteRelated: Manganese dioxide can serve as a starting material in its manufacture.
Potassium manganateRelated: Oxidation of manganate produces this familiar manganese compound.