First time users of CAS Scifinder at Yale will need to register for an account.

SciFinderⁿ is the new platform for the Chemical Abstracts Service. Access SciFinderⁿ with your existing username and password. Please note that you must be connected to the Yale network. See Off-Campus Access to E-Resources.

Connect to: SciFinder

CAS SciFinder is the latest scientific information solution from CAS, a division of the American Chemical Society. In addition to the reference, substance, reaction and supplier content found in SciFinder web, CAS SciFinder includes relevance-ranked results, step-by-step procedures and protocols, citation mapping, biosequence searching, retrosynthetic analysis, patent landscape mapping, and touch-screen enabled structure drawing.

SciFinder is available for Yale students, postdoctoral fellows, faculty, visiting scholars, and staff.