has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919707 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460577 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID242707069 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336432 |