午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

???,1-(4-????-2,5-???????)-

???,1-(4-????-2,5-???????)-
???,1-(4-????-2,5-???????)- ??? ???
?? ??:
88772-48-9
???:
???,1-(4-????-2,5-???????)-
???(??):
???,1-(4-????-2,5-???????)-
???:
Ethanone, 1-(4-fluoro-2,5-dihydroxyphenyl)-
???(??):
Chromane Related Compound 1;Ethanone, 1-(4-fluoro-2,5-dihydroxyphenyl)-
CBNumber:
CB71859372
???:
C8H7FO3
??? ??:
0
MOL ??:
88772-48-9.mol

???,1-(4-????-2,5-???????)- ??

???
210°C

??

???,1-(4-????-2,5-???????)- C??? ??, ??, ??

??

2,5-Dihydroxy-4-fluoro Acetophenone is a useful synthetic compound.

?? ??

Preparation by Fries rearrangement of 2-fluoro-hydroquinone diacetate with aluminium chloride in nitrobenzene at 140° (66%).

???,1-(4-????-2,5-???????)- ?? ?? ? ???

???

?? ??


???,1-(4-????-2,5-???????)- ?? ??

???( 4)?? ??
??? ?? ??? ?? ?? ? ??
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +8615965530500
nickzhang@hangyubiotech.com China 10985 58

Copyright 2019 ? ChemicalBook. All rights reserved