Tetra Methyl Piperidinyloxy is a heterocyclic compound which is most commonly utilized as a catalyst in organic synthesis of alcohols to aldehydes. It has molecular formula C9H18NO with a molar mass of 156.25 g/mol. This compound is completely reliable in nature and has high purity level. It can be prepared by oxidation of 2,2,6,6-tetramethylpiperidine under controlled conditions. This compound shows low melting point range of 36 to 38 degrees Celsius and is known to sublime under vacuum. Tetra Methyl Piperidinyloxy appears as a red-orange colored solid which is considered as a stable radical.