August 29, 2025 — Wiley is pleased to announce that the second edition of Maurer, Meyer, Helfer, Weber: LC-HR-MS/MS Library of Drugs, Poisons, and Their Metabolites is now available in NIST format.

This highly regarded library comprises an extensive collection of over 5,500 mass spectra for over 2,300 parent drug or poisons, and over 3,200 of their metabolites or artifacts, in over 100 compound classification groups.

This expands our coverage for NIST users as well as our KnowItAll subscribers.

The KnowItAll version of this database was already made available earlier this year.

Learn more about this database: https://sciencesolutions.wiley.com/solutions/technique/lc-ms/mmhw-lc-hr-ms-ms-library-of-drugs-poisons-and-their-metabolites/