has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919991 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337001 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID242831778 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141459918 |