SciFinder-n This link opens in a new windowThe most important database for chemistry, SciFinder-n covers articles, patents, book chapters, conference proceedings, and dissertations that have been indexed by Chemical Abstracts Service from 1907 to the present. Search by keyword, structure, reaction, chemical name or CAS Registry Number. SciFinder-n indexes articles in the publications of many fields in addition to chemistry if they describe new chemistry. These fields include agriculture, biology, engineering, medicine, physics, textiles, and veterinary medicine.NOTE: First time users must create a user name and password.