何当奇
第12楼2007/01/09
eMolecules - Searching the World's ChemistryTM
Welcome to eMolecules ... the chemical search engine you've been waiting for. We have actively assembled the world's largest repository of publicly accessible chemistry information. Now, it's easier and faster than ever to find the chemical information necessary to do your work more efficiently and effectively.
Emolecule 搜索世界的化学
欢迎来到eMolecules...你期待已久的化学搜索引擎。