Spectral Database for Organic Compounds, SDBS
About two-thirds of the compounds in this database from the National Institute of Advanced Industrial Science and Technology (Japan) contain 6 - 16 carbon atoms. Lab measurement details are provided. The database can be searched by variety of parameters (compound name, molecular formula, molecular weight, CAS #, nmr peak positions, mass number, etc.
Spectra: ESR (2,000), 1H NMR (13,900), 13C NMR (12,000), IR (49,000), MS (21,800), Raman (3,500)