Mitsubishi Gas Chemical (MGC) does business in a wide range of fields, from basic chemicals to fine chemicals and functional materials. MGC developed OXYCAPT Multilayer Plastic Vial & Syringe as an alternative to glass containers. OXYCAPT consists of three layers, and has some excellent features such as high oxygen & UV barrier, very low extractables, etc. Oxygen Barrier of OXYCAPT is almost the same as glass, and more than 100 times better than COP. According to our internal studies of antibody, OXYCAPT outperformed glass and COP in terms of preventing oxidation. As biologics is mainly weak for oxygen, OXCAPT can contribute to stability of such oxygen sensitive drugs. OXYCAPT also has UV barrier. For example, although about 70% UV light of 300nm transmits through glass and COP, only 1.7% UV light transmits through OXYCAPT™. We have confirmed this feature also contributes to stability of biologics.