<unk>  (or<unk> ylic amide) is an organic compound with the chemical formula CH2=CHC(O)NH2. It is a white odorless solid, soluble in water and several organic solvents. From the chemistry perspective,<unk>  is a vinyl-substituted primary amide (CONH2). It is produced industrially mainly as a precursor to polyacrylamides, which find many uses as water-soluble thickeners and flocculation agents. It is highly toxic, likely to be carcinogenic, but its main derivative polyacrylamide is nontoxic. The possibility that this innocuous bulk chemical contains traces of its hazardous precursor has long attracted attention.
Acrylamide
Cyanoacrylate
Tienilic acid
Phenylsilatrane
Helothermine
Podophyllum resin
Diiodohydroxyquinoline
Silver nitrate