has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919984 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460541 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336433 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243057908 |