### Finding Nikkaji Number and InChI of the chemical compound which is named "1,3,7-Trimethylxanthine"

PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX jst: <http://vocab.jst.go.jp/terms/sti#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dct: <http://purl.org/dc/terms/>
PREFIX ssc: <http://semanticscience.org/resource/>

SELECT DISTINCT ?NikkajiNum ?InChI
FROM <http://rdf.integbio.jp/dataset/nikkaji/main>
FROM <http://rdf.integbio.jp/dataset/nikkaji/inchi>
FROM <http://rdf.integbio.jp/dataset/nikkaji/canonical_smiles>
FROM <http://rdf.integbio.jp/dataset/nikkaji/link2jglobal>
WHERE 
{ 
  ?sj ?p "1,3,7-Trimethylxanthine"@en.
  ?sj dct:identifier ?NikkajiNum.
  ?sj owl:sameAs ?sn.
  ?sn ssc:CHEMINF_000200 ?at.
  ?at rdf:type ssc:CHEMINF_000396.
  ?at ssc:SIO_000300 ?InChI.

} 
LIMIT 100