Polyoxyethene (20) sorbitan monolaurate
CAS number [9005-64-5]
Polysorbate 20 (commercially also known as Tween 20) is a polysorbate surfactant whose stability and relative non-toxicity allows it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. It is a polyoxyethylene derivative of sorbitan monolaurate, and is distinguished from the other members in the Tween range by the length of the polyoxyethylene chain and the fatty acid ester moiety. The commercial product contains a range of chemical species
Tween is used as a wetting agent in flavored mouth drops such as Ice Drops, helping to provide the spreading feeling of the other ingredients like SD alcohol and mint flavor.
The World Health Organization has suggested acceptable daily intake limits of 0-25 mg of polyoxyethylene sorbitan esters per kg body weight