Spectral Database for Organic Compounds SDBSManaged by the National Institute of Advanced Industrial Science and technology (AIST), this database contains several types of spectra for about 34,000 organic compounds. The spectra types include: electron impact Mass spectrum (EI-MS), a Fourier transform infrared spectrum (FT-IR), a 1H nuclear magnetic resonance (NMR) spectrum, a 13C NMR spectrum, a laser Raman spectrum, and an electron spin resonance (ESR) spectrum.