There is an option to export the underlaying domain tables as JSON for further external processing (e.g. KNIMES Get Request node or JSON Reader)
use the base url /json/returnJSON.json? combined with the table name e.g. compound
currently available: compound, compoundMinimalInfo, biologicalDescriptors, pubChemRecord, pubChemSynonym, citationReference, citationReferenceMinimalInfo, author
compoundMinimalInfo contains then only the id, smiles and InChIKey for fast checking in these lists, but does not attach the biologicalDescriptors and references tables or other IDs.