亚洲免费黄色,人妻奶水人妻系列50部,一级性爱AV,91在线无码精品秘 入口楼风,av黄色片
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
?