@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:336044_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Porphyrins which are combined with a metal ion. The metal is bound equally to all four nitrogen atoms of the pyrrole rings. They possess characteristic absorption spectra which can be utilized for identification or quantitative estimation of porphyrins and porphyrin-bound compounds."@en, "Porfirinas combinadas con un ion metálico. El metal se une igualmente a los cuatro átomos de nitrógeno de los anillos de pirrol. Presentan espectros de absorción característicos, que se pueden utilizar en la identificación o la estimación cuantitativa de porfirinas y compuestos unidos a porfirinas."@es ;
  dc:source "Medical Subject Headings" .

<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:336044
  a <https://lod.nal.usda.gov/naltv#Chemical>, skos:Concept ;
  dc:created "2020-02-10"^^xsd:date ;
  dc:modified "2020-10-29"^^xsd:date ;
  skos:broader nalt:25454 ;
  skos:definition nalt:336044_def ;
  skos:inScheme <https://lod.nal.usda.gov/nalt-core>, <https://lod.nal.usda.gov/nalt> ;
  skos:narrower nalt:18118, nalt:25453 ;
  skos:prefLabel "metaloporfirinas"@es, "metalloporphyrins"@en ;
  ns0:marc001 "95109" .

nalt:18118
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:336044 ;
  skos:prefLabel "hemo"@es, "heme"@en .

nalt:25454
  a ns0:Chemical, skos:Concept ;
  skos:narrower nalt:336044 ;
  skos:prefLabel "porfirinas"@es, "porphyrins"@en .

nalt:25453
  a ns0:Chemical, skos:Concept ;
  skos:broader nalt:336044 ;
  skos:prefLabel "chlorophyll"@en, "clorofila"@es .