Wikipedia:ChemSpider

ChemSpider is a service of the Royal Society of Chemistry. It is a database of data about chemicals. It generates a unique identifier for each molecule, and these are used in Wikidata and in Wikipedia's Chembox template.

Obtaining an identifier value
The ChemSpider URL for, say, Aesculin is:



This may appear in the browser as, for example:



in both cases, the ChemSpider ID is

and that is the value which should be entered in Wikidata, and in the Chembox parameter ChemSpiderID (or one of:


 * ChemSpiderID
 * ChemSpiderID1
 * ChemSpiderID2
 * ChemSpiderID3
 * ChemSpiderID4
 * ChemSpiderID5
 * ChemSpiderIDOther

in its Chembox Identifiers module sub-template).

Categories

 * Category:Chemical pages needing a ChemSpiderID
 * Category:Articles with changed ChemSpider identifier
 * Category:Chemical compounds which do not have a ChemSpiderID

Wikidata
The following Wikidata items are relevant:


 * (used in German Wikipedia)
 * (used in German Wikipedia)
 * (used in German Wikipedia)
 * (used in German Wikipedia)
 * (used in German Wikipedia)
 * (used in German Wikipedia)

Property PP661 is used for ChemSpider IDs (it may have multiple values)