query-3c848bbab7934260881c503a2ed23a8e

rq turtle/ttl

CAS and unspecified stereochemistryWhen CAS doesn't define some stereo or cis/trans center I have come to the conclusion that they always mean the racemic mixture. One reason is they are a product-oriented database, and they have also no ontologic hierarchy for their items, unlike ChEBI. Do you agree? If you agree then there are 250 such wrongly placed CAS statements:

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel 
WHERE 
{
  VALUES ?class { wd:Q55662548 wd:Q55662547 wd:Q15711994 }
  ?item wdt:P31 ?class.
  ?item wdt:P231 [].
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?class") v2("?item"):::projected a1((" ")) c4(["bd:serviceParam"]):::iri c6(["#91;AUTO_LANGUAGE#93;,en"]):::literal bind0[/VALUES ?class/] bind0-->v1 bind00(["wd:Q55662548"]) bind00 --> bind0 bind01(["wd:Q55662547"]) bind01 --> bind0 bind02(["wd:Q15711994"]) bind02 --> bind0 v2 --"wdt:P31"--> v1 v2 --"wdt:P231"--> a1 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c4 --"wikibase:language"--> c6 end