has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391408226 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141578017 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID239171451 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248665343 |