Dear all, I remember having used some SMARTS-based function to flag structures containing "non-organic" atoms. It seems that there is a knime node for that ( https://forum.knime.com/t/rdkit-molecule-substructure-filter-incorrectly-matches-aromatic-sulfur-atoms-molecule-as-metal-containing-compounds/12935), but I wasn't able to find any Python implementations. Does anyone know where to find it? Thanks in advance
-- *Rafael da Fonseca Lameiro* PhD Student - Medicinal and Biological Chemistry Group (NEQUIMED) São Carlos Institute of Chemistry - University of São Paulo - Brazil [image: orcid logo 16px] https://orcid.org/0000-0003-4466-2682
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