Wikidata entity: P661
Quantities
| P4876 | number of records | 114000000 |
| P9073 | applicable 'stated in' value | ... | Q2311683 (???) | ??? |
| P1793 | format as a regular expression | String | [1-9]\d* | ??? |
| P1921 | formatter URI for RDF resource | String | http://rdf.chemspider.com/$1 | ??? |
| P1630 | formatter URL | String | https://www.chemspider.com/Chemical-Structure.$1.html | ??? |
| P31 | instance of | ... | Q19833835 (Wikidata property to identify substances) | Wikidata property to identify substances |
| P31 | instance of | ... | Q21294996 (Wikidata property related to chemistry) | Wikidata property related to chemistry |
| P2378 | issued by | ... | Q2311683 (???) | ??? |
| P6104 | maintained by WikiProject | ... | Q8487234 (WikiProject Chemistry) | WikiProject Chemistry |
| P2302 | property constraint | ... | Q19474404 (single-value constraint) | single-value constraint |
| P2302 | property constraint | ... | Q21502404 (format constraint) | format constraint |
| P2302 | property constraint | ... | Q21502410 (distinct-values constraint) | distinct-values constraint |
| P2302 | property constraint | ... | Q21503250 (subject type constraint) | subject type constraint |
| P2302 | property constraint | ... | Q52004125 (allowed-entity-types constraint) | allowed-entity-types constraint |
| P2302 | property constraint | ... | Q53869507 (property scope constraint) | property scope constraint |
| P3254 | property proposal discussion | Url | Wikidata:Property proposal/Archive/9 - Wikidata | ??? |
| P2875 | property usage tracking category | ... | Q26250012 (Category:Pages using Wikidata property P661) | Category:Pages using Wikidata property P661 |
| P1896 | source website for the property | Url | None | ??? |
| P2668 | stability of property value | ... | Q23611288 (never changes) | never changes |
| P8966 | URL match pattern | String | ^https?:\/\/(?:www\.)?chemspider\.com\/Chemical\-Structure\.([1-9]\d*)\.html | ??? |
| P8966 | URL match pattern | String | ^https?:\/\/(?:www\.)?chemspider\.com\/Chemical\-Structure\.([1-9]\d*)\.html($|[\?#](rid=[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})?) | ??? |
| P1855 | Wikidata property example | ... | Q179996 ((RS)-methadone) | (RS)-methadone |
| P1855 | Wikidata property example | ... | Q199678 (vitamin C) | vitamin C |
| P1855 | Wikidata property example | ... | Q4118 (sulfuric acid) | sulfuric acid |
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