Online Spectral Database: Quick access to millions of NMR, IR, Raman, UV-Vis, and Mass Spectra. * Registered users receive 5 free spectral views to explore SpectraBase. Learn more about our subscription plans here. Copyright © 2026 by John Wiley & Sons, Inc. This is a free site organized by National Institute of Advanced Industrial Science and Technology (AIST), Japan. If you can not access to the Search page, check this FAQ. The service was unavailable around the period 2018. We aim to improve analysis and identification, reduce errors, and increase productivity by providing the high level of quality data required for results you can rely on. At the helm of our collections are the. The NIST Mass Spectrometry Data Center, a Group in the Biomolecular Measurement Division (BMD), develops evaluated mass spectral libraries and provides related software tools. These products are intended to assist compound identification by providing reference mass spectra for GC/MS (by electron. The "UV/Vis + Photochemistry Database" is a non-profit project established in 2000 and is subdivided into a Spectra Service and a Literature Service. University of Wisconsin, USA The files in the Entries section contain predictions for atoms and molecules of astrophysical and atmospheric interest as well as some documentation on which data have been used for the predictions.
