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.
... originally as The Warlocks, and later "The Grateful Dead", they became the de facto resident band of Ken Kesey's Merry Pranksters[?], with the early sound heavily ...