has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460561 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919101 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337271 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID249326662 |