has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391408058 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID245419220 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141577307 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID239171023 |