欧美老妇高潮喷水20_97无码视频在线看视频_国产色婷婷五月精品综合在线_日本aⅴ在线观免费观看
ABOUT US
About us
View
PRODUCTS
Pyrazine
Thiazole
Furan
Pyrrole
Thiophene
Pyridine
Sulfur
Aldehydes and ketones
Synthetic fragrance
Pharmaceutical intermediates
VIEW
NEWS CENTER
CONTACT US
Contact us
Order
CHINESE
2-Ethyl pyrazine
Product code: A013
Aroma: roast, nutty, coffee, meaty
Applicable Scope: nuts, coffee, meat, cocoa, bread, etc.
Suggested Dosage (PPm): 2-4
FEMA: 3281
National Standard Code: S0766
CAS Number: 13925-00-3
Previous product:
2-Ethyl-3-methyl pyrazine
Next product:
2-Acetyl-3-methyl pyrazine
?