Overview
The broadest combined library available with over 2 million EI and LC-MSn mass spectra
The combined Wiley Registry 12th Edition/NIST 2020 Mass Spectral Library is the most comprehensive mass spectral library available, making it an essential tool for general unknown compound identification. Included in the combination package are:
- Over 1 million EI mass spectra
- Over 1 million searchable chemical structures
- Over 840,000 unique compounds
Experience improved spectral search performance with the Wiley Registry 12th Edition/NIST 2020 Library. Replicate spectra and over 3 million chemical names and synonyms provide a higher rate of correct identification and ensure that this library can aid in classical EI, exact mass, and other methods of identification.
Library Specifications
| GC-MS Data | LC-MS Data | ||
Library | Wiley Registry 12th Edition | NIST/EPA/NIH 2020 | Wiley Registry 12th / NIST 2020 GC-MS Total* | NIST MS/MS 2020 |
Spectra | 817,000 | 350,000 | 1,089,000 | 1,320,000 |
Chemical Structures | 785,000 | 350,000 | 1,056,000 | 30,000 |
Unique Compounds | 668,000 | 306,000 | 843,000 | 30,000 |
Ions | — | — | — | 185,000 |
*Total GC-MS counts for WR12/N20 found from total WR12 plus N20 minus overlap
