has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID239172008 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391408249 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248545362 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141577231 |