| Wikidata property for an identifier | Q19847637 |
| Wikidata property related to chemistry | Q21294996 |
| Wikidata property related to food and eating | Q23038310 |
| P1793 | format as a regular expression | E\d{3,4}[A-z]? |
| P2264 | Mix'n'match catalog ID | 24 |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Archive/8#P628 |
| P1896 | source website for the property | https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2011:295:0001:0177:DE:PDF |
| P8966 | URL match pattern | ^https?:\/\/(?:www\.)?food-info\.net\/..\/e\/.(\d+\D?)\. |
| P10726 | class of non-item property value | E number | Q207810 |
| P17 | country | European Union | Q458 |
| P1630 | formatter URL | https://wikidata-externalid-url.toolforge.org/?p=628&url_prefix=http:%2F%2Fwww.fao.org%2Fgsfaonline%2Fadditives%2Fresults.html%3FsearchBy=ins%26ins=&id=$1 | |
| P1552 | has characteristic | prefix | Q23585486 |
| P2302 | property constraint | single-value constraint | Q19474404 |
| item-requires-statement constraint | Q21503247 | ||
| format constraint | Q21502404 | ||
| distinct-values constraint | Q21502410 | ||
| property scope constraint | Q53869507 | ||
| allowed-entity-types constraint | Q52004125 | ||
| P2875 | property usage tracking category | Category:Pages using Wikidata property P628 | Q47455006 |
| P1659 | related property | Open Food Facts food additive ID | P1820 |
| Q11173 | chemical compound |
| Q189567 | food additive |
| Q113145171 | type of chemical entity |
| Q207810 | E number | Wikidata property | P1687 |
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