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

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate ??? ???
?? ??:
2064078-72-2
???:
Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate
???(??):
Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate;2H-Furo[2,3-h]-1-benzopyran-3-carboxylic acid, 9-methyl-2-oxo-, ethyl ester
CBNumber:
CB414210242
???:
C15H12O5
??? ??:
272.25
MOL ??:
2064078-72-2.mol

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate ??

???
129.2-129.7 °C
?? ?
455.2±45.0 °C(predicted)
??
1.345±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

??

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate C??? ??, ??, ??

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate ?? ?? ? ???

???

?? ??

Ethyl 9-methyl-2-oxo-2H-furo[2,3-h]-1-benzopyran-3-carboxylate ?? ??

???( 1)?? ??
??? ?? ??? ?? ?? ? ??
Shandong Kangman Biological Technology Co., Ltd. 0539-7109900 18253952333
 sales2@cmpharm.com.cn China 264 58
Copyright 2019 ? ChemicalBook. All rights reserved