MF: C₅H₆N₂O
MW: 110.113940 g/mol 
Flash Point: 45.6 °C 
IUPAC Name: 2-methoxypyrazine
Product Name: 2-Methoxypyrazine
Density: 1.14 g/mL at 25 °C(lit.)
Refractive index  n20/D 1.509(lit.)
Enthalpy of Vaporization: 37.43 kJ/mol 
Boiling Point: 153.6 °C at 760 mmHg
Vapour Pressure: 4.24 mmHg at 25°C 
Solubility in water: Slightly soluble
Appearance: colourless to light yellow liquid with a nutty, cocoa-like odour
Product Categories: Pyrazine ; Pyrazines ; Alkoxypyrazines ; pyrazine Flavor ; Building Blocks ; Heterocyclic Building Blocks ; Alphabetical Listings ; Flavors and Fragrances ; M-N
Synonyms: 2-Methoxypyrazin ; Methoxypyrazine ; Methoxypyrazine, 2- ; Fema 3302 ; Fema Number 3302 ; methoxy-pyrazin ; 2-Methoxypyrazine 99+% Fcc ; 2-Methoxypyrazine,98% 
Following is the molecular structure of 2-Methoxypyrazine (3149-28-8):

Skin and eye irritant. When heated to decomposition it emits toxic fumes of NO_x.
Safety Information of 2-Methoxypyrazine (3149-28-8):
Hazard Codes: Xn  
Xn; Harmful 
Risk Statements: 10-22-37/38-41
10: Flammable 
22: Harmful if swallowed  
37/38: Irritating to respiratory system and skin 
41: Risk of serious damage to eyes 
Safety Statements: 16-26-39
16: Keep away from sources of ignition - No smoking  |
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
39: Wear eye/face protection 
RIDADR: UN 1993 3/PG 3
WGK Germany: 3
HazardClass: 3
PackingGroup: III
HS Code: 29339990

 First Aid Measures of 2-Methoxypyrazine (3149-28-8):
1.Ingestion: Seek medical assistance.
2.Inhalation: Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
3.Skin: Remove and isolate contaminated clothing and shoes. Wash skin with soap and water. Flush with running water for at least 20 minutes
4.Eyes: Flush with running water for at least 20 minutes.
Fire Fighting: Use of water spray when fighting fire may be inefficient. Small Fires: Dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam. Use water spray or fog; do not use straight streams.
 2-Methoxypyrazine (3149-28-8) is Used as a daily, edible flavor.