Mitsubishi Gas Chemical Company, Inc.
Mitsubishi Building, 5-2 Marunouchi 2, Chiyoda-ku
Tokyo 100-8324, Japan
T: +81 3 3283 4913


Mitsubishi Gas Chemical (MGC) is a leading company in the field of oxygen barrier and absorbing polymers. Based on these technologies and experiences, MGC launched new multilayer plastic vial named OXYCAPTTM in 2019. It has achieved excellent oxygen and ultraviolet (UV) barrier, high water vapor barrier, very low extractables, high pH stability, low protein adsorption, high transparency, high break resistance, easier disposability, lighter weight, etc.


OXYCAPTTM consists of three layers. The drug contact layer and the outer layer are made of cyclo-olefin polymer (COP), and the oxygen barrier layer is made of MGC’s novel polyester.

The oxygen barrier of OXYCAPT-P vial is about 20 times better than that of COP monolayer vial. OXYCAPTTM also provides an excellent UV barrier. While about 70% of 300-nm UV light transmits through glass and COP, only 1.7% transmits through OXYCAPTTM. The OXYCAPTTM vial is produced by co-injection blow-molding technology. MGC has also developed inspection methods for testing the oxygen barrier layer. All of the containers are fully inspected by state-of-the-art inspection machinery. MGC can offer bulk and ready-to-use (RTU) vials. The RTU vials are provided in ISO-based nest and tub formats. The nest and tub are mainly sterilized using gamma rays. There are 2-, 6-, 10-, and 20-mL variants for vials. MGC is pleased to consider customizing the shape and size if there is a request from customers.

In addition to the advantages of COP, such as a strong water vapor barrier, high break resistance, very low extractables, and low protein adsorption, OXYCAPTTM also provides strong oxygen and UV light barrier. MGC believes OXYCAPTTM offers a lot of benefits to the rapidly growing field of biologics and gene/cell therapies.