ParticipantID: schymane Category: category2 Authors: Schymanski, Emma(1) and Meringer, Markus (2) Affiliations: (1) Eawag: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, CH-8600 Dübendorf, Switzerland (2) DLR: German Aerospace Centre, Münchnerstrasse 20, D-82234 Oberpfaffenhofen-Wessling, Germany Automatic pipeline: no Spectral libraries: no (or very limited) Abstract: There is no specific MOLGEN for LC-MS/MS yet. Thus, Category 2 challenges only have answers where the formula and specific substructure information was clear. For Challenge 17, we used the wrong substructure information in the original submissions. In this resubmission, the correct substructures were used with MOLGEN 3.5. Steric energy was calculated with MOLGEN-QSPR and the minumum of 3 runs was taken. In silico fragmentation was performed with the command line version of MetFrag (thanks Christoph) as the SDF was too large for the web interface. A consensus score was made combining the two results. SMILES from OpenBabel were used in the submission file.