The Tween20 with CAS registry number of 9005-64-5 is also known as Armotan pml-20. The systematic name is Polyoxyethylene sorbitan monolaurate. It belongs to classification codes of Drug/Therapeutic Agent; Excipients; Pharmaceutic aid [surfactant]; Reproductive Effect; Skin / Eye Irritant; Surface-Active Agents; TSCA Flag XU [Exempt from reporting under the Inventory Update Rule]. In addition, the formula is C₅₈H₁₁₄O₂₆ and the molecular weight is 1227.54. Tween20 is a polyoxyethylene derivative of sorbitan monolaurate.It is yellow liquid which is stable,incompatible with strong oxidizing agents.It is complex mixtures of polyoxyethylene ethers used as emulsifiers or dispersing agents in pharmaceuticals.

Uses of Tween20:
 It is used as a detergent and emulsifier in a number of domestic, scientific, and pharmacological applications. For example, it is used as a wetting agent in flavored mouth drops such as ice drops. Besides, it is used as a solubilizing agent of membrane proteins and for lysing mammalian cells. This chemical is used as an excipient in pharmaceutical applications to stabilize emulsions and suspensions.

Safety Information of Tween20:
Tween20 is harmful if swallowed and risk of serious damage to eyes .It is irritating to eyes, respiratory system and skin .In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .When you use it ,wear suitable protective clothing, gloves and eye/face protection and avoid contact with skin and eyes.

The toxicity data of Tween20 is as follows: