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| CAS No.: | 19847-12-2 |
|---|---|
| Name: | Pyrazinecarbonitrile |
| Molecular Structure: | |
|
|
|
| Formula: | C5H3N3 |
| Molecular Weight: | 105.099 |
| Synonyms: | 2-Cyanopyrazine;Pyrazine-2-carbonitrile;2-Pyrazinecarbonitrile;2-Cyano Pyrazine; |
| EINECS: | 243-369-5 |
| Density: | 1.22 g/cm3 |
| Melting Point: | 18-20 °C |
| Boiling Point: | 226.1 °C at 760 mmHg |
| Flash Point: | 90.7 °C |
| Solubility: | Slightly soluble in water. |
| Appearance: | slightly green transparent liquid |
| Hazard Symbols: |
 Xi, Xn
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-36 |
| PSA: | 49.57000 |
| LogP: | 0.34828 |
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Chemistry
Molecular Structure of Cyanopyrazine (CAS NO.19847-12-2):
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IUPAC Name: pyrazine-2-carbonitrile
Empirical Formula: C5H3N3
Molecular Weight: 105.0974
H bond acceptors: 3
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 49.57 Å2
Index of Refraction: 1.54
Molar Refractivity: 26.91 cm3
Molar Volume: 85.7 cm3
Surface Tension: 65.8 dyne/cm
Density: 1.22 g/cm3
Flash Point: 90.7 °C
Enthalpy of Vaporization: 46.26 kJ/mol
Boiling Point: 226.1 °C at 760 mmHg
Vapour Pressure: 0.0834 mmHg at 25°C
Melting point: 18-20°C
InChI
InChI=1/C5H3N3/c6-3-5-4-7-1-2-8-5/h1-2,4H
Smiles
N#Cc1nccnc1
EINECS: 243-369-5
Product Categories: Pyrazines, Pyrimidines & Pyridazines; Pyrazine; Pyrazines; Chloropyrazines, etc.;Pyrazines, Pyrimidines & Pyridazines; Building Blocks; Heterocyclic Building Blocks
Safety Profile
Hazard Codes: 
Xn,
Xi
Risk Statements: 20/21/22-36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
RIDADR: 3276
WGK Germany: 3
Hazard Note: Irritant
HazardClass: 6.1
Specification
Cyanopyrazine , with CAS number of 19847-12-2, can be called Pyrazine-2-carbonitrile ; 2-pyrazinecarbonitrile ; 2-Cyanopyrazine ; Pyrazinecarbonitrile- ; Pyrazinecarbonitrile . Cyanopyrazine (CAS NO.19847-12-2) is mainly used for pharmaceutical raw materials, intermediates, etc.