has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID402676821 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID238922947 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID249136089 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID137382462 |