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16-doxyl Stearic acid is a form of stearic acid that contains a 4,4-dimethyl-3-oxazolinyloxy (DOXYL) group, creating a hydrophobic spin label. It is commonly used to study molecular aspects of membranes and hydrophobic proteins.

16-DOXYL-stearic acid, free radical is a spin label for membrane fluidity studies. It can be used to study the dynamics of the lipid bilayer, distribution of fatty acids, and effects of lipid components on detergent-resistant membranes. It can be used for the investigation of surfactant effects on protein formulations by EPR spectroscopic technique.

Involved in membrane studies including:

• Dynamics and state of lipid bilayer-internal water using 1H dynamic nuclear polarization
• Distribution of fatty acids
• Transversal relaxation of nitroxides for PELDOR Spectroscopy
• Effects of different lipid components on detergent-resistant membranes

ChEBI: 16-DOXYL-stearic acid is a member of aminoxyls. It is functionally related to a 4,4-dimethyloxazolidine-N-oxyl and an octadecanoic acid.

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