Chemistry

Web Resources

iScienceSearch

 iScienceSearch allows searching the Internet by structure, synonym, CAS Registry Number and free text. In the background, they return structure, names and CAS Registry Numbers* within seconds.  A search by name can automatically invoke another search by structure and/or CAS Registry, or any combination of these. iScienceSearch presently searches more than 60 free chemical and pharma relevant databases  -- containing more than 100 million pages which associate chemical structures with data.

http://ref-notes.blogspot.com/2013/02/isciencesearch-internet-search-engine.html