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Websites  
ACS Products 
We offer ACS products, including a selection of over 12,500 chemicals and reagents. Our ACS products meet the stringent purity requirements set forth by the American Chemical Society.
http://www.spectrumchemical.com    More Info
Science Magazine 
Global journal issued weekly and containing research serving the science community with online forums and discussions of important issues
http://www.sciencemag.org/    More Info