Spectral Database for Organic Compounds, SDBSNational Institute of Advanced Industrial Science and Technology (AIST), Japan.
As of 2015, for about 34,600 compounds, included 25,000 MS, 15,900 1H NMR, 14,200 13C NMR, 54,100 FT-IR, 3,500 Raman, and 2,000 ESR spectra.