成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 3-AMINO-5,6-DIMETHYL-1H-PYRAZIN-2-ONE
43029-21-6

3-AMINO-5,6-DIMETHYL-1H-PYRAZIN-2-ONE synthesis

1synthesis methods
90000-71-8 Synthesis
3-hydroxy-5,6-diMethylpyrazine-2-carboxaMide

90000-71-8
8 suppliers
inquiry

-

Yield:-

Reaction Conditions:

with potassium hydroxide;bromine

References:

Schipper;Day [Journal of the American Chemical Society,1952,vol. 74,p. 350,352]

3-AMINO-5,6-DIMETHYL-1H-PYRAZIN-2-ONE Related Search: