National Institute of Advanced Industrial Science and Technology
The Spectral Database for Organic Compounds (SDBS) is developed and maintained by Japan's National Institute of Advanced Industrial Science and Technology. SDBS includes 14700 1H NMR spectra and 13000 13C NMR spectra as well as FT-IR, Raman, ESR, and MS data. The data are stored and displayed as an image of the processed data. Annotation is achieved by a list of the chemical shifts correlated to letters which are also used to label a molecular line drawing. Access to the database is available free of charge for noncommercial use. Users are requested not to download more than 50 spectra and/or compound information in one day. Between 1997 and February 2008 the database has been accessed more than 200 million times. T. Saito, K. Hayamizu, M. Yanagisawa and O. Yamamoto are attributed reproducibility for the NMR data.