九九热re99re6在线精品_中文字幕无码数_一本精品日韩中文字幕在线_人禽伦交短篇h

中文版 English Korean

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

????

5-Hydroxypyrazine-2-carboxylic acid methyl ester

 

Product name 5-Hydroxypyrazine-2-carboxylic acid methyl ester
Structural Formula
Molecular Formula C6H6N2O3
Molecular Weight 154.1234
CAS No. 13924-95-3
Packing  
Properties
Appearance Colorless liquid
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