malononitrile Structural formula CNCH2CN CAS 109-77-3 Molecular formula C3H2N2 Molecular weight 66.06 malononitrile Dicyanomethane; Propanedinitrile; MDN; Malonitrile; Malonodinitrile; N-(4-Fluorobenzoyl)piperidine; Cyanoacetonitrile2CN3H2N2Shape and propertiesColorless solid (less than 25°C),boiling poin:220°C, flash point 112°C, specific gravity D434.2:1.0488, easy to dissolve in many organic ...