Genetron (freon)

[Annette C. Hollmann]

Does anyone know of a supplier that still sells Genetron ? It is a freon 
reagent used to purify viral particles, and due to environmental 
regulations it is becoming more and more difficult to obtain.

Alternatively, does anyone know of a more environment-friendly 
alternative to Genetron? We need to purify SV40.

Thanks :-)

Annette
ah690549 at mbcr.bcm.tmc.edu