NIST Mass Spectral Library

The NIST Mass Spectral Library is the world’s most widely used and trusted resource for identifying mass spectra.  The NIST 20 EI Library has 350,643 spectra for 306,869 compounds and over 447K literature and experimentally determined GC Methods and Retention Indexes for 139,963 compounds. NIST now records the RI values of all measured spectra, including the … Continue reading NIST Mass Spectral Library