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UniChem efficiently produces cross-references between chemical structure identifiers from different databases (more background). Use the form below to search UniChem...
Within UniChem, molecules from different sources are considered identical if they share the same Standard InChI. Mappings between the identifiers for these molecules may be achieved here.
Use the query form below to search UniChem with structures (InChIs or InChIKeys) or with src_compound_id's from various sources. Some example queries are given at the foot of the page to help you get started. For formatting tips go here. For larger queries, users are strongly advised to use the web services instead.
Queries return a list of src_compound_id-to-structure 'assignments', and related information ( What's an 'assignment?' ).