Nonylphenol Ethoxylate (Cas 127087-87-0), utilized in producing antioxidants, additives for lubricating oils, detergents for dishwashing and laundry, emulsifiers, and solubilizers.
Polyethylene Glycol Octylphenyl Ether is a clear viscous fluid (less viscous than undiluted glycerol). Undiluted Triton X-100 has a viscosity of about 270 centipoise at 25 °C which comes down to about 80 centipoise at 50 °C.