Samples were analyzed as previously described 106 by a custom-built FT-ICR mass spectrometer equipped with a 9.4 Tesla horizontal 220 mm bore diameter superconducting solenoid magnet 107 and a modular ICR data station (Predator) . FT-ICR MS files are publicly available via the Open Science Framework () at DOI 10.17605/OSF.IO/MY7KU. Proton masses were added to the FT-ICR-MS spectra to compare them with the simulated spectra by adding 1.007276. In the FR mass spectra, 63 out of 228 peaks (27.6%) in the < 200 MW range had a molecular formula hit. Over six generations, 6886 out of 8250 (83.4%) unique mass products were matched, though it should be borne in mind that each of these unique masses typically corresponds to multiple unique isomeric species generated by the in silico network. Peaks that were unassignable, potentially due to the presence of unconsidered elements, or that were were excluded from this analysis. We also examined C matches, by adding 1.003355. In the raw processed data, several peaks could not be assigned a molecular formula by the spectrometer. These peaks could possibly have been inorganic salt clusters. Therefore, we discarded all data entries with "No Hit" for an assigned formula. An exception was made for the peaks in the m/z 150-200 range which we found to be consistent with containing a C isotope within a precision of 4 decimal places. Next, given that our intended sample and modeled chemistry (Formose Reaction) involves only C, H and O, we further filtered out data points containing nitrogen and sulfur atoms.