has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391408503 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID239171112 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID245109947 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141577841 |