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Wiley Registry / NIST Mass Spectral Library 2023

Wiley Registry / NIST Mass Spectral Library 2023

Comprehensive compound coverage for confident results

Experience the combined power of two essential libraries for mass spectral analysis

The Wiley Registry®/NIST Mass Spectral Library 2023 is the most comprehensive combined mass spectral library commercially available, with over 3 million spectra (includes EI and tandem MS data) making it the clear choice for general unknown compound identification. Broad, up-to-date compound coverage ensures identification across multiple use cases and a wide variety of analytes.

Here are just some of the reasons why the 2023 release of the Wiley Registry / NIST library is a critical resource for any lab engaged in MS analysis:

  • Broad range of compounds for targeted and non-targeted analyses—increase both the speed and likelihood of identification with a comprehensive dataset.
  • Expanded coverage of world patents, including USA, China, Japan, and Europe in the 2023 release to ensure your lab remains current.
  • Spectral records contain additional information that’s searchable such as physical properties, structures, and DOIs when available to help narrow your results even further.
  • Data is carefully curated and reviewed by Wiley’s internal and external experts to ensure it meets quality standards for results you can rely on.
  • Spectra are segmented into separate libraries including excess replicate spectra that enable robust searching across varied laboratory settings.
  • Available in the most common manufacturer formats to take the guesswork out of compatibility.
  • Includes the NIST 2023 Software (MS Search, AMDIS, MS Interpreter) to keep your lab up to date with the latest analytical tools.

A foundational tool for any laboratory engaged in GC-MS or MS-MS analysis, the Wiley Registry®/NIST Mass Spectral Library remains a lab standard consistently evolving to meet the ever-growing research demands of today in Wiley’s continued commitment to delivering relevant, quality data resources.


SX 978-13941-97972 – Wiley Registry / NIST Mass Spectral Library 2023
SX 978-13941-97989 – Wiley Registry / NIST Mass Spectral Library 2023 (Upgrade)*

*Customers must have proof-of-purchase, for each copy of the previous version (NIST98 plus Wiley 7th, or higher) of the Mass Spectral Databases being upgraded


   GC-MS Data LC-MS Data
Library Wiley Registry of MS Data 2023 NIST/EPA/NIH 2020 Wiley Registry 12th / NIST 2020 GC-MS Total* NIST MS/MS 2020
Spectra 873,300 394,000 1,180,800 2.3m+
Chemical Structures 841,100 347,100 1,148,600 1.4m+
Unique Compounds 741,000 306,000 950,200 51,500
Ions 399,200

*Total GC-MS counts for WR23/N23 found from total WR23 plus N20 minus overlap

Spectrometrics-Mass Spectral Libraries Compatibility-LC-MS

Spectrometrics-Mass Spectral Libraries Compatibility-GC-MS

Compound coverage can be searched at www.compoundsearch.com

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