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

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester ??? ???
?? ??:
1355612-93-9
???:
Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester
???(??):
Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester
CBNumber:
CB79749491
???:
C12H12N2O4
??? ??:
248.23
MOL ??:
1355612-93-9.mol

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester ??

?? ?
399.4±42.0 °C(Predicted)
??
1.384±0.06 g/cm3(Predicted)
?? ?? (pKa)
-3.65±0.20(Predicted)

??

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester C??? ??, ??, ??

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester ?? ?? ? ???

???

?? ??

tert-butyl 2-(8-oxo-7,8-dihydropyrazino[2,3-d]pyridazin-5-yl)acetate

Acetic acid, 2-(7-oxofuro[3,4-b]pyrazin-5(7H)-ylidene)-, 1,1-dimethylethyl ester ?? ??

???( 0)?? ??
??? ?? ??? ?? ?? ? ??
Copyright 2019 ? ChemicalBook. All rights reserved