| Wikidata property related to chemistry | Q21294996 |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Archive/42#P2405 |
| P2302 | property constraint | allowed qualifiers constraint | Q21510851 |
| range constraint | Q21510860 | ||
| allowed units constraint | Q21514353 | ||
| property scope constraint | Q53869507 | ||
| subject type constraint | Q21503250 | ||
| citation-needed constraint | Q54554025 |
| Q11173 | chemical compound | properties for this type | P1963 |
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