NIST 2020 MS Library Bundle

The latest release of the NIST Mass Spectral Library, which includes the NIST Tandem Mass Spectral Library and NIST/EPA/NIH Mass Spectral Library and NIST GC Retention Index Database greatly increases the number of compounds and spectra since the 2017 version.

NIST Tandem Mass Spectral Library, 2020 release

• 31,000 compounds
• Twice as many as the 2017 release
• 186,000 precursor Ions
• 1.3 million spectra

NIST/EPA/NIH EI-MS Library, 2020 release

• 350,704 electron ionization (EI) spectra
• 306,643 compounds, 43,774 replicate spectra
• 39,729 more compounds than NIST 17
• 447,289 retention index (RI) values
• 139,382 RI compounds – 40 K increase
• 114,629 compounds with both RI & MS