_:YibKXgJk507 . _:YibKXgJk507 "sid_pubchem_substance". . "http://pubchem.bio2rdf.org/sparql". . . "http://www.ncbi.nlm.nih.gov/sites/entrez?db=pcsubstance". . "ftp://ftp.ncbi.nih.gov/pubchem/Substance/CURRENT-Full/XML/". "SID : PubChem Substance"@en. . "http://www.ncbi.nlm.nih.gov/sites/entrez?db=pcsubstance"@en. "ftp://ftp.ncbi.nih.gov/pubchem/Substance/CURRENT-Full/XML/". . . "514471"^^. _:YibKXgJk507. . . "Source: Freebase - The World's database". "817660.0"^^. "http://pubchem.bio2rdf.org/sparql". "40874689"^^. . . . . . . "The PubChem Substances Database contains descriptions of chemical samples, from a variety of sources, and links to PubMed citations, protein 3D structures, and biological screening results that are available in PubChem BioAssay."@en.