Doesn it get confused by ambigous trade names?
No, the Thor (thesaurus-oriented retrieval) methodology used here is good at dealing with ambiguous identifiers (e.g., two chemicals with the same name). All matching references are shown any time there is an ambiguity. For instance, if you look up “SULFAZOL”, you will get the data for both SULFATHIAZOLE (SULFAZOLE is WELT’s Trade name) and for SULFAPHENAZOLE (SULFAZOLE is BARLOCCO’s Trade name).