Why don't you try it?
If i got my hands on something unknown i personally would start testing right away

There are som info on the net to read about it. It does not seem to be for extrusion, but might work anyway.
Probably nasty smells and toxic fumes from it.

I myself tried an Alphagary flexpellet none else had tried. It was extrudable, but smelled like ASS, smell got into everything for several days after and had some nasty throat irritating fumes. 

Flexiness was twice as flexy as ninjaflex, so even much slower printing as ninjaflex.
But nothing i will proceed with until i get a ventilationsystem in place.

does someone use this pellets yet?

http://www.hostingpics.net/viewer.php?i … MG0268.jpg
thx 
fredaxe