Complex sentence: Tween 20, sometimes abbreviated to just tween, is a polysorbate whose stability and relative non-toxicity allow it to be used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications.
Split into simpler sentences: Tween 20, sometimes abbreviated to just tween, is a detergent polysorbate. Its stability and relative non-toxicity allow it to be used in a number of domestic, scientific, and pharmacological applications.