This library includes spectra of vitamins, resins, starches, glycerides, fatty acids, sugars, carbohydrates, proteins and peptides. Spectral Range of Database is 4000 - 650 cm-1. All spectra were obtained using a single bounce diamond ATR. All Spectra have been reviewed and evaluated for quality. Database is available as 2 cm-1 or 4 cm-1 resolution. The number of spectra in this database is 4515.