@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

nalt:7890
  skos:narrower nalt:17509, nalt:10468, nalt:198409, nalt:7889, nalt:43995 ;
  dc:modified "2013-04-02"^^xsd:date ;
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  ns0:marc001 "30912" ;
  skos:broader nalt:3047 ;
  dc:created "2006-01-19"^^xsd:date ;
  skos:prefLabel "pteridinas"@es, "pteridines"@en ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:exactMatch <http://id.loc.gov/authorities/subjects/sh85108545> .

nalt:10468
  skos:prefLabel "metotrexato"@es, "methotrexate"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:7890 .

nalt:43995
  skos:prefLabel "neopterina"@es, "neopterin"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:7890 .

nalt:7889
  skos:prefLabel "aminopterina"@es, "aminopterin"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:7890 .

nalt:198409
  skos:prefLabel "flavinas"@es, "flavins"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:7890 .

ns0:Chemical
  rdfs:label "Chemical"@en ;
  a owl:Class .

nalt:3047
  skos:prefLabel "compuestos heterocíclicos nitrogenados"@es, "heterocyclic nitrogen compounds"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:7890 .

<https://lod.nal.usda.gov/nalt>
  rdfs:label "NALT Full"@en ;
  a skos:ConceptScheme .

nalt:17509
  skos:prefLabel "biopterina"@es, "biopterin"@en ;
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:7890 .