Spectral Database for Organic CompoundsThis is a free site organized by National Institute of Advanced Industrial Science and Technology (AIST), Japan. Integrated spectral database system for organic compounds, which includes the following spectra - Electron Impact Mass (EI-MS), 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.