has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248921384 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141714888 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391430246 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID233608493 |