2-Acetyl-3,5-dimethylpyrazine Chemical Properties 
 
2-Acetyl-3,5-dimethylpyrazine Usage And Synthesis 
Identification 
CAS.No.: 
54300-08-2 
			54300-09-3 
FL.No.: 
14.055
FEMA.No.: 
3327
NAS.No.: 
3327
 
CoE.No.: 
11294
EINECS.No.: 
259-076-0 259-077-6 
JECFA.No.: 
786
EAFUS.No.: 
977043-63-2 
 
  
Description It has an odor of roasted hazelnut with caramel popcorn nuances.
 Regulatory Status CoE: n/a 
FDA: n/a 
FDA (other): n/a 
JECFA: ADI: Acceptable. No safety concern at current levels of intake when used as a flavoring agent (2001).
 Usage Reported uses (ppm): (FEMA, 1994)
 Natural occurrence Reported found in coffee.
 Chemical Properties It has an odor of roasted hazelnut with caramel popcorn nuances. Occurrence Reported found in coffee Definition ChEBI: 2-Acetyl-3,5-dimethylpyrazine is an aromatic ketone. Preparation From the corresponding dimethyl-ethylpyrazine by bromination, followed by oxidation to the ketone Aroma threshold values Detection at 1%: musty roasted cocoa, nutty peanut with caramel-like nuance. Taste threshold values Taste characteristics at 5 ppm: almond, caramel, cocoa, hazelnut, peanut, pistachio, toffee and coffeelike. 
 
2-Acetyl-3,5-dimethylpyrazine Preparation Products And Raw materials