Dark-brown, fixed oil; repulsive odor. Soluble in water. Combustible.
Organic preparations, source of pyrrole, denat-
urant for alcohol.
Substance obtained by destructive distillation of bones. Contains pyrrole, aniline, stearonitrile, valeronitrile, pyridine, methylamine and other nitrogenous compounds.
Evolves very toxic ammonium cyanide
when heated to 180C.
