has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336923 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460278 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919928 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243934740 |