Unsymmetrical dimethylhydrazine (UDMH) (1,1-Dimethylhydrazine) is a hypergolicrocket fuel[?] ingredient, often used in combination with the oxidiser, nitrogen tetroxide.
UDMH is toxic, and can explode in the presence of oxidisers.
... on the DCMA, its proposed successors, and their consequences, intended and unintended hilarious (www.freedom-to-tinker.com/archives/cat_fritxs_hit_list.html/).
New DRM ...