has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID423669812 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID137637909 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID238791250 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID244661477 |