In the Jaworski dataset, two reactions were flagged as uncertain or invalid. The first instance involved the presence of hydrogen in the product without alkali metals or hydrides. This anomaly was traced back to a precursor reaction involving a bromine radical Br • , from which the the generation of a hydrogen radical H • is incorrectly inferred. Instead of separate radicals, the formation of hydrogen bromide HBr is expected, see Fig. . Further scrutiny revealed inaccuracies e.g. in Grignard Reactions, where the product was incorrectly identified as RMgH instead of RMg + . This error could be attributed to the standardized procedures of the original database, which led to the improper imputation of hydrogen on the reactant side. The appropriate correction would be the addition of H + to the reactant side and RMg + to the product side, Fig. .