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adiponitrile

n. (context chemistry English) A compound with the chemical formula (CH2)4(CN)2.

Wikipedia
Adiponitrile

Adiponitrile is the organic compound with the formula (CH)(CN). This di nitrile, a viscous, colourless liquid, is an important precursor to the polymer nylon-6,6. In 2005, about one billion kilograms were produced annually.