GNPS - Pyrrolizidine Alkaloid Spectral Library (PASL)

The Pyrrolizidine Alkaloid Spectral Library (PASL) contains 165 high-resolution tandem mass spectra (MS/MS) from 84 pyrrolizidine alkaloids (PAs) commercial or in-house synthesized standards, along with 18 additional PAs manually annotated in crude plant extracts. The spectra were collected at Wageningen Food Safety Research, part of Wageningen University and Research (The Netherlands), using an Orbitrap IQ-X tribrid mass spectrometer in ESI+ mode. The library contains all classes of PAs, including the 35 PAs regulated in the EU.