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2-Butynedinitrile (1071-98-3)

Identification
Name:2-Butynedinitrile
Synonyms:Acetylenedicarbonitrile(6CI,7CI,8CI); 1,2-Dicyanoacetylene; 1,2-Dicyanoethyne; Dicyanoacetylene;Dicyanoethyne
CAS:1071-98-3
Molecular Formula: C4N2
Molecular Weight: 76.09
InChI: InChI=1/C4N2/c5-3-1-2-4-6
Molecular Structure: (C4N2) Acetylenedicarbonitrile(6CI,7CI,8CI); 1,2-Dicyanoacetylene; 1,2-Dicyanoethyne; Dicyanoacetylene;Dicy...
Properties
Flash Point: °C
Boiling Point: 76.5°Cat760mmHg
Density:1.176g/cm3
Refractive index:1.481
Specification:

 Dicyanoacetylene ,its cas register number is 1071-98-3. It also can be called But-2-ynedinitrile ;and Carbon subnitride . It has a linear structure with alternating triple and single covalent bonds, and it can explode to carbon powder and nitrogen gas for its high endothermic heat of formation. As of 2006, its the detection in the interstellar medium has been impossible, because its symmetry means it has no rotational microwave spectrum. 

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Flash Point: °C
Safety Data