Property talk:P2027

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Colour Index International constitution ID
identifier issued by Colour Index International, for manufactured colour products

Associated item	Colour Index International (Q868387)
Data type	External identifier
Domain	chemicals (note: this should be moved to the property statements)
Allowed values	According to this template: Numbers (CI 15510 not allowed, 15510 allowed) According to statements in the property: [A-Z0-9: ]+ When possible, data should only be stored as statements
Example	indigo (Q422662) → 73000 Direct Brown 95 (Q72469565) → 30145 2,4-Dinitro-4'-aminodiphenylamine (Q72472437) → 10375
Tracking: usage	Category:Pages using Wikidata property P2027 (Q47461902)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Mix'n'match (Report) Database reports/Constraint violations/P2027 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 203 Main statement 200 98.5% of uses Qualifier 3 1.5% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2027#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2027#Single value, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2027#Entity types

Format “[A-Z0-9: ]+”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2027#Format, SPARQL

This property is being used by: ca:Plantilla:Identificadors química Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Import

• Some CICN are already present as labels
• Small list: http://www.taketombo.co.jp/ci/cie.htm

--Teolemon (talk) 08:26, 17 October 2016 (UTC)