[<< wikibooks] Chemical Sciences: A Manual for CSIR-UGC National Eligibility Test for Lectureship and JRF/Spectral Database for Organic Compounds
Spectral Database for Organic Compounds (SDBS) is a website hosted by the National Institute of Advanced Industrial Science and Technology of Japan. It is freely accessible, and contains extensive spectroscopic data for organic compounds including that for infrared and NMR spectroscopy and mass spectrometry.