毛片24种姿势无遮无拦,丁香色情成人免费视频网站,亚洲精品无码高潮喷水A片第一次,亚洲精品无码久久毛片

中文版 English Korean

??:+86-573-82813639, 83621335
??:+86-573-82813637
???:? ? +86-13605839392
??:sales@jlightchem.com
???:http://www.xwzoi.cn

????

ethyl (E)-4-ethoxy-2-oxobut-3-enoate

 

【Product name】: ethyl 4-ethoxy-2-oxo-3-butenoate; ethyl ethoxymethylenepyruvate
【Structural Formula】:
【Molecular Formula】: C8H12O4
【Molecular Weight】: 172.178
【CAS NO】: 76240-19-2
【Packing】:  
Properties
Appearance  
Boiling range °C(760 mmHg)  

 

Quality Specifications
Purity % ≥ 97.0
Moisture % ≤ 0.5

 

[ CLOSE ]
Copyright(C)2012, ??? ????? ?? All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle