潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

United-States 2-Acetylpyrazine Suppliers, United-States 2-Acetylpyrazine Manufacturers.

ChemNet | Sign in | Join Now

Details for 2-Acetylpyrazine

2-Acetylpyrazine

111Category:

CAS NO:

EC NO:

244-753-5

Molecular Formula:

C₆H₈N₂O

Molecular Weight:

124.1405

Specification:

InChI:

InChI=1/C6H8N2O/c1-6(9)8-4-2-7-3-5-8/h2-5,7H,1H3

Synonyms:

Methyl pyrazinyl ketone;2-Acetylpyrazine;1-(pyrazin-2-yl)ethanone;1-(pyrazin-1(4H)-yl)ethanone;

Molecular Structure:

if you are sourcing 2-Acetylpyrazine from United-States ,just feel free to inquire