Potassium permanganate is usually a preferred reagent for oxidative cleavage to form aldehyde,as it is a much milder and less toxic reagent than osmium tetroxide.

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Potassium permanganate is a strong oxidizing agent and is not considered milder or less toxic compared to osmium tetroxide; it is often used for oxidative cleavage to form carboxylic acids rather than aldehydes.

Potassium Permanganate Is Usually a Preferred Reagent for Oxidative Cleavage