The Tome of Alchemy includes a 6-page set of rules and a 151-page list of elements to use with your alchemy. Alchemists using Catalysts create non-magical mixtures, and they are a wonderful addition to any campaign. Each Element has a location and rarity factor to determine the amount of time needed to locate the element with the proper quality. There is a simple description of most elements as well as a gold cost to just buy the element.
Finally, a spread sheet to build your alchemist potions, calculating the time to create them and the cost. There is even a data set for TableSmith Users.