Oleate

an oily, clear to amber, water-insoluble liquid, C1 9H3 6O2, used chiefly as an intermediate for detergents, wetting agents, and emulsifiers.

C41H21O2Hg A white, crystalline powder with a melting point of 45°C; soluble in organic solvents; used in paints as a mildew-proofing agent, and as a fungicide.

Polysorbate 80 (commercially also known as tween 80, a registered trademark of ici americas, inc. )[2] is a nonionic surfactant and emulsifier derived from polyethoxylated sorbitan and oleic acid, and is often used in foods. Polysorbate 80 is a viscous, water-soluble yellow liquid.

It is a clear to hazy amber liquid with a soap-like odor having MF C18H33KO2.