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

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Chemical>
  a owl:Class ;
  rdfs:label "Chemical"@en .

nalt:12297
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Chemical> ;
  dc:created "2006-01-19"^^xsd:date ;
  dc:modified "2013-08-26"^^xsd:date ;
  skos:altLabel "vitamin B3"@en, "vitamin B-3"@en, "vitamin B 3"@en, "nicotinic acid"@en ;
  skos:broader nalt:1503, nalt:1477, nalt:17545 ;
  skos:exactMatch agrovoc:c_12825, agrovoc:c_12818, <http://id.agrisemantics.org/gacs/C7607>, <http://id.cabi.org/cabt/79334>, <http://id.loc.gov/authorities/subjects/sh85091698> ;
  skos:inScheme <https://lod.nal.usda.gov/nalt>, <https://lod.nal.usda.gov/nalt-core> ;
  skos:prefLabel "niacin"@en, "niacina"@es ;
  skos:related nalt:31980 ;
  ns0:marc001 "25278" .

nalt:17545
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:12297 ;
  skos:prefLabel "complejo vitamínico B"@es, "vitamin B complex"@en .

nalt:1477
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:12297 ;
  skos:prefLabel "piridinas"@es, "pyridines"@en .

nalt:1503
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:12297 ;
  skos:prefLabel "aromatic acids"@en, "ácidos aromáticos"@es .

nalt:31980
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "pelagra"@es, "pellagra"@en ;
  skos:related nalt:12297 .