chemical compound with validated CAS registry number (E299)

language code	label	description	aliases	edit
en	chemical compound with validated CAS registry number	Shape expression extending the one for 'chemical compound' with a CAS registry number defined validated with the CAS Common Chemistry database.		edit

check entities against this Schemaedit

IMPORT <https://www.wikidata.org/wiki/Special:EntitySchemaText/E298>
PREFIX E298: <https://www.wikidata.org/wiki/Special:EntitySchemaText/E298#>

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX pr: <http://www.wikidata.org/prop/reference/>

# Example SPARQL query: select * where { ?x wdt:P31 wd:Q11173 ; p:P231 ?casStatement .   ?casStatement ps:P231 ?cas ; prov:wasDerivedFrom ?reference . ?reference pr:P248 wd:Q18907859 ; pr:P813 ?date . } limit 5

# Example reference: 
#
# stated in [P248]: CAS Common Chemistry [Q18907859]
# retrieved [P813]: 2021-04-01
# reference URL [P854]: "https://commonchemistry.cas.org/detail?cas_rn=133-99-3"
# InChIKey [P235]: "GUBGYTABKSRVRQ-QUYVBRFLSA-N"

start = @<#wikidata-with-validated-cas>

<#wikidata-with-validated-cas> @ E298:wikidata-with-cas AND {
  wdt:P231 .{1} ; # CAS registry number

  p:P231 {
    prov:wasDerivedFrom .* ;
    prov:wasDerivedFrom {
      pr:P248 .+ ; # stated in
      pr:P813 .+ ; # retrieved
      pr:P854 .+ ; # reference URL
      pr:P235 .+ ; # InChIKey (on which the match is based)
    }+;
  }+;
}