Pyridinium Chlorochromate

Pyridinium chlorochromate (PCC) is the salt with the formula C₅H₅NH. It is a reagent in organic synthesis. It is a red-orange solid. A variety of related compounds are known with similar reactivity. Although not widely used, PCC offered the advantage of the selective oxidation of alcohols to aldehydes, whereas many other reagents were less selective. Disadvantages to using PCC are the tedious reaction workup and its toxicity.