An encyclopedia of chemicals and drugs. Good place to look for chemical and property information. Note: this resource needs the ChemDraw plugin in order to work. You will be asked to create a free account in order to download this free plugin the first time you use the resource.
*NOTE: The Merck Index Online will be transitioning from the 14th (current) edition to the 15th edition. Access to the 14th edition will end on December 31, 2013.
There will be an overlap period beginning immediately and continuing through December 31, 2013. As of January 1, 2014, the 15th edition will be the only version of this resource available.