Property talk:P662

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PubChem CID
identifier from database of chemical molecules and their activities in biological assays (Compound ID number)

Description	PubChem is a database of chemical molecules and their activities in biological assays. Each compound in Pubchem is identified by a unique Compound Identifier (CID) accession number.
Associated item	PubChem (Q278487)
Applicable "stated in" value	PubChem (Q278487)
Data type	External identifier
Template parameter	Template:Infobox drug (Q6033882) |PubChem= and Template:Chembox (Q52426) |PubChem=
Domain	chemical substance (Q79529), more specifically chemical compound (Q11173) (note: this should be moved to the property statements)
Allowed values	[1-9]\d{0,8} (numeric string, 1 to 9 digits)
Example	thalidomide (Q203174) → 5426 (RDF) oxycodone (Q407535) → 5284603 (RDF) lithium carbonate (Q410174) → 11125 (RDF)
Source	http://pubchem.ncbi.nlm.nih.gov
Formatter URL	https://pubchem.ncbi.nlm.nih.gov/compound/$1
Tracking: same	Category:PubChem ID (CID) same as Wikidata (Q28486183)
Tracking: differences	Category:PubChem ID (CID) different from Wikidata (Q20636195)
Tracking: usage	Category:Pages using Wikidata property P662 (Q20636197)
Tracking: local yes, WD no	Category:PubChem ID (CID) not in Wikidata (Q20636194)
See also	no label (P2874), PubChem Substance ID (SID) (P2153)
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) Database reports/Constraint violations/P662 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,595,431 Main statement 1,368,534 out of 111,566,432 (1% complete) 85.8% of uses Qualifier 5 <0.1% of uses Reference 226,892 14.2% of uses
Search for values

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

Format “[1-9]\d{0,8}|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P662#Format, hourly updated report, SPARQL

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). Known exceptions: (S)-(-)-1,1'-bi-2-naphthol (Q72443503), (R)-(+)-1,1'-bi-2-naphthol (Q72443501)
List of violations of this constraint: Database reports/Constraint violations/P662#Unique value, SPARQL (every item), SPARQL (by value)

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

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: cesium azide (Q14773521), cobalt(II) cyanide (Q2620039), potassium sulfide (Q408920), aluminum citrate (Q18213342), calcium hydroxide (Q182849), iron hydroxide sulfate (Q83019732), calcium hydride (Q422847)
List of violations of this constraint: Database reports/Constraint violations/P662#Single value, 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/P662#Entity types

This property is being used by: it:Template:Composto chimico ru:Шаблон:Изомеры, ru:Шаблон:Лекарство, ru:Шаблон:Вещество, ru:Шаблон:Лекарственное средство be:Шаблон:Рэчыва bn:টেমপ্লেট:PubChem en:Template:PubChem, en:Template:Chembox Identifiers ii es:Plantilla:Ficha de compuesto químico, es:Plantilla:Ficha de medicamento, es:Plantilla:Ficha de compuesto químico/pruebas2 hy:Կաղապար:Դեղամիջոց, hy:Կաղապար:Տեղեկաքարտ Նյութ, hy:Կաղապար:Տեղեկաքարտ Դեղամիջոց, hy:Կաղապար:Տեղեկաքարտ Դեղամիջոց/Ավազարկղ ko:틀:화합물 정보 mn:Загвар:PubChem, mn:Загвар:Инфобокс химийн нэгдэл tt:Калып:Drugbox, tt:Калып:Лекарственное средство, tt:Калып:Матдә2 he:תבנית:תרופה ja:Template:PubChem de:Vorlage:Infobox Chemikalie, de:Vorlage:Infobox Chemikalie/Test, de:Vorlage:ChemID eo:Ŝablono:Informkesto kemia substanco, eo:Ŝablono:Informkesto kemia substanco/dokumentado kk:Үлгі:Дәрі pl:Szablon:Związek chemiczny infobox be-x-old:Шаблён:Рэчыва tg:Шаблон:Моддаи кимиёӣ cy:Nodyn:Cyffuriau no:Mal:Infoboks legemiddel b:pl:Szablon:Związek chemiczny infobox ro:Format:Infocaseta Substanță ca:Plantilla:Identificadors química, ca:Plantilla:Infotaula de fàrmac, ca:Plantilla:Amadalvarez/traduccions 2, ca:Plantilla:Infotaula de fàrmac/prova mk:Шаблон:PubChem, mk:Предлошка:PubChem pt:Predefinição:PubChem cs:Šablona:Infobox - léčivá látka uk:Шаблон:Хімічні властивості da:Skabelon:Infoboks grundstof vec:Modeło:Infobox de Conposto chìmego ga:Teimpléad:WD Bosca Sonraí Druga be-tarask:Шаблён:Рэчыва Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Which ID

PubChem has two kind of ID: CID and SID. CID is unique for each component, and each component can have several SID so only CID has to be used with this property. Snipre (talk) 10:36, 24 August 2013 (UTC)

PubChem Numbers are not unique

PubChem numbers should be unique and each Wikidata-Object (substance) should have only one entry with one value. Nevertheless there are various examples where PubChem has more than one entry for same substance: e.g. for Tri(butan-2-yloxy)alumane PubChem has entry 61289 and 16685157, which are both for same substance with same CAS-number. How to solve? regards --Bert (talk) 12:26, 5 May 2018 (UTC) I think one of the identifiers could be deprecated or you may try to contact PubChem. Wostr (talk) 18:40, 10 June 2018 (UTC)