has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918952 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460585 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336422 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248632222 |