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chemical formula
(P274)
Property
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From Wikidata
description of chemical compound giving element symbols and counts
formula
molecular formula
Language
Label
Description
Also known as
default for all languages
No label defined
–
English
chemical formula
description of chemical compound giving element symbols and counts
formula
molecular formula
Data type
String
Statements
instance of
Wikidata property related to chemistry
0 references
Wikidata property with datatype string that is not an external identifier
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maintained by WikiProject
WikiProject Chemistry
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Wikidata item of this property
chemical formula
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Wikidata property example
water
chemical formula
H₂O
0 references
carbon dioxide
chemical formula
CO₂
0 references
ethylene
chemical formula
C₂H₄
0 references
format as a regular expression
([αβγδφωλμπ]-)?([([]*[A-Z☐][ub]?[a-z]?[₁₂₃₄₅₆₇₈₉₀.]*(\)?[¹²³⁴⁵⁶⁷⁸⁹⁰]*[⁺⁻]?)?[\])|,₁₂₃₄₅₆₇₈₉₀]*(·\(?[-0-9.]*n?\)?)?)+
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equivalent property
http://bioschemas.org/molecularFormula
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property usage tracking category
Category:Pages using Wikidata property P274
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category for value same as Wikidata
Q28046688
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category for value not in Wikidata
Category:Chemical formula not in Wikidata, but available on Wikipedia
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category for value different from Wikidata
Q20636209
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stability of property value
never changes
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related property
general formula
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property proposal discussion
no value
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FactGrid property ID
P954
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Constraints
property constraint
single-value constraint
separator
criterion used
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format constraint
format as a regular expression
([αβγδφωλμπ]-)?([([]*[A-Z☐][ub]?[a-z]?[₁₂₃₄₅₆₇₈₉₀.ₓ]*(\)?[¹²³⁴⁵⁶⁷⁸⁹⁰]*[⁺⁻]?)?[\])|,₁₂₃₄₅₆₇₈₉₀ₓ]*(·\(?[-0-9.]*n?\)?)?)+
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conflicts-with constraint
property
general formula
constraint status
mandatory constraint
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allowed-entity-types constraint
item of property constraint
Wikibase item
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property scope constraint
property scope
as main value
0 references
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chemical formula
(P274)
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