Pyrazine
Catalog Number
ACM290379
CAS
290-37-9
IUPAC Name
pyrazine
Synonyms
FEMA 4015;FEMA NUMBER 4015;1,4-DIAZINE;1,4-Diazabenzene;Paradiazine;p-Diazine;Piazine;Pyrazin
Application
Pyrazine serves a versatile purpose across various industries due to its unique properties. Primarily, it is used as a flavoring agent, contributing to the distinct tastes and aromas of roasted and toasted foods, including hints of flavors such as cooked spinach or even green peas. Beyond its role in flavor enhancement, pyrazine is a key component in traditional Chinese medicine, acting as a vital ingredient in certain herbal formulations. In the pharmaceutical and perfume industries, pyrazine functions as an intermediate, facilitating the synthesis of a wide range of chemical compounds. This unsaturated heterocyclic compound, recognized for its strong aroma similar to pyridine, also plays a crucial part in creating pyrazine derivatives, which are essential in various chemical preparations.
Molecular Weight
80.09
Molecular Formula
C4H4N2
Product Information
Description
Solid;deliquescent crystals or wax-like solid with a pungent, sweet, corn-like, nutty odour
Canonical SMILES
C1=CN=CC=N1
InChI
InChI=1S/C4H4N2/c1-2-6-4-3-5-1/h1-4H
InChI Key
KYQCOXFCLRTKLS-UHFFFAOYSA-N
Boiling Point
115.0 °C
Melting Point
54 °C
Flash Point
132°F
Purity
>98.0%(GC)
Density
1.031g/mL at 25°C(lit.)
Solubility
freely soluble in water, organic solvents;very soluble (in ethanol)
Appearance
White to Almost white powder to crystal
Storage
Store under inert gas
Complexity
26.5
Condition to avoid
Hygroscopic
Exact Mass
80.037448g/mol
Hazard Statements
H315 : Causes skin irritation.H319 : Causes serious eye irritation.H228 : Flammable solid.
Heavy Atom Count
6
MDL Number
MFCD00006122
Monoisotopic Mass
80.037448g/mol
Precautionary Statements
P240 : Ground/bond container and receiving equipment.P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment.P264 : Wash skin thoroughly after handling.P280 : Wear protective gloves/ eye protection/ face protection.P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.P337 + P313 : If eye irritation persists: Get medical advice/ attention.P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P302 + P352 : IF ON SKIN: Wash with plenty of soap and water.P332 + P313 : If skin irritation occurs: Get medical advice/ attention.P362 : Take off contaminated clothing and wash before reuse.
Reaxys Registry Number
103905
Rotatable Bond Count
0
Signal Word
Warning
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