DMI, a new aprotic solvent as an alternative for DMF, DMA or DMSO
 

DMI (1,3 Dimethyl-2-Imidazolidinone, CAS number 80-73-9) is a colorless,
transparent, high polar solvent with high thermal and chemical stability
and non-corrosiveness. It has an excellent solubility for inorganic
and organic compounds and high dielectric constant. More information
about its physicochemical properties, applications and safe handling
can be found at

http://www.mitsuichemicals.com/dmi.htm

DMI oxidizes, is there an easy way to fill the head space with N?

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"DMI is typically stored in iron, can or drum containers whose net weight is 18 kg and 200 kg respectively. DMI has a hygroscopic property and is oxidized more or less when it is exposed to air for a long period of time. Therefore, its storage containers should be kept sealed with inactive gas such as nitrogen."

This is a quote from th packaging warning as stated on the link provided on original post.....