久久久国产精品无码一区二区三区_日韩免费一区二区三区在线_在线播放日韩专区_国产精品系列在线观看_人与动人物AV在线_西西大胆午夜欧美视频_午夜不卡无码中文字幕影院_欧美亚洲国产日韩综合在线撒放_成年污片免费视频网站_无遮挡一级毛片私人影院

2-Ethyl-3,(5or6)-dimethyl pyrazine


Product Code: A021
Aroma: Chocolate, Coffee, Roasted Nuts
Applicable Scope: Nuts, Chocolate, Meat
Suggested Dosage (PPm): 1-5
FEMA: 3149
National Standard Code: S0767
CAS Number: 13925-07-0



  Previous product: 2-Acetyl-3,5(or6)dimethyl pyrazine
  Next product: 2-Methoxy pyrazine

?