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Malononitrile, also propanedinitrile, is a nitrile with the formula CH2(CN)2. Malononitrile is relatively acidic, with a pKa of 11 in water.
M 1398 (OTTO) Malononitrile, 98% Cas 109-77-3 - used as a raw material for the Gewald reaction of ketone or aldehyde to produce 2-aminothiophene using elemental sulfur and a base.