2-Cyanoguanidine

2-Cyanoguanidine
Names
Preferred IUPAC name
N′′-Cyanoguanidine
Other names
  • Cyanoguanidine
  • Dicyandiamide
  • Dicyanodiamide
  • N-cyanoguanidine
  • 1-cyanoguanidine
  • Guanidine-1-carbonitrile
  • Didin
  • DCD
  • Dicy
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.006.649
EC Number
  • 207-312-8
RTECS number
  • ME9950000
UNII
  • InChI=1S/C2H4N4/c3-1-6-2(4)5/h(H4,4,5,6) Y
    Key: QGBSISYHAICWAH-UHFFFAOYSA-N Y
  • InChI=1/C2H4N4/c3-1-6-2(4)5/h(H4,4,5,6)
    Key: QGBSISYHAICWAH-UHFFFAOYAY
  • N#CNC(=N)N
  • isomer: N#CN=C(N)N
  • zwitterion: N#CN=C([NH-])[NH3+]
Properties
C2H4N4
Molar mass 84.082 g·mol−1
Appearance White crystals
Density 1.4 g/cm3
Melting point 209.5 °C (409.1 °F; 482.6 K)
Boiling point 252 °C (486 °F; 525 K)
41.3 g/L
Solubility in acetone soluble
Solubility in ethanol soluble
log P −1.5 (est)
2.25×10−10 (atm·m3)/mol
Acidity (pKa) 14.8
Basicity (pKb) 14.4
−44.55×10−6 cm3/mol
Hazards
Lethal dose or concentration (LD, LC):
>30000 mg/kg (oral, rat)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

2-Cyanoguanidine is a nitrile derived from guanidine. It is a dimer of cyanamide, from which it can be prepared.

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