Cheminformatics is a process of storing and retrieving information about chemical compounds.The Cheminformatics is the use of computer software to assist in the acquisition, analysis and management of data and information relating to chemical compounds and their properties. It applies Information Technology to chemical data by including the topics such as data bases, combinatorial library design, structure activity relationships, chemical data mining and structure based drug design. The main role of this subject is the management of enormously growing chemical contents in a scientific and useful manner.