has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337093 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460707 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919846 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248777203 |