has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391408592 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141577340 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID239171657 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID245843503 |