Polyethylene glycol-p-tert-octylphenyl ether is a nonionic surfactant that has a hydrophilic polyethylene oxide chain and an aromatic hydrocarbon lipophilic or hydrophobic group.
Polyethylene glycol-p-tert-octylphenyl ether is also known as Triton® X-100 a nonionic, non-denaturing detergent suitable for solubilization, isolation and purification of membrane protein complexes.