As of 2022-03-07, the Wikidata property ASHRAE refrigerant number (P4842) is used on 58 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P2566 ECHA InfoCard ID 58
 0.0010
P232 EC number 58
 0.0010
P8494 DSSTOX compound identifier 58
 0.0001
P3117 DSSTox substance ID 58
 0.0001
P231 CAS Registry Number 58
 0.0001
P662 PubChem CID 58
 0.0001
P234 InChI 58
 0.0000
P235 InChIKey 58
 0.0000
P679 ZVG number 57
 0.0080
P652 UNII 57
 0.0008
P661 ChemSpider ID 57
 0.0005
P7049 AICS Chemical ID (former scheme) 55
 0.0033
P646 Freebase ID 54
 0.0000
P6366 Microsoft Academic ID 53
 0.0002
P2062 HSDB ID 52
 0.0091
P5220 ICSC ID 43
 0.0258
P657 RTECS number 39
 0.0226
P683 ChEBI ID 38
 0.0004
P592 ChEMBL ID 37
 0.0007
P227 GND ID 34
 0.0000
P3345 RxNorm ID 32
 0.0035
P1579 Reaxys registry number 30
 0.0016
P1578 Gmelin number 29
 0.0092
P3073 CosIng number 25
 0.0049
P665 KEGG ID 24
 0.0012
P10283 OpenAlex ID 24
 0.0002
P1417 Encyclopædia Britannica Online ID 24
 0.0001
P8408 KBpedia ID 23
 0.0006
P4964 SPLASH 22
 0.0028
P3636 PDB ligand ID 20
 0.0009
P7025 HCIS ID 19
 0.0051
P486 MeSH descriptor ID 19
 0.0005
P3417 Quora topic ID 19
 0.0001
P244 Library of Congress authority ID 19
 0.0000
P695 UN number 18
 0.0331
P2115 NDF-RT ID 17
 0.0052
P6689 MassBank accession ID 16
 0.0015
P715 DrugBank ID 16
 0.0013
P2892 UMLS CUI 16
 0.0006
P3827 JSTOR topic ID 16
 0.0006
P8189 National Library of Israel J9U ID 16
 0.0001
P508 BNCF Thesaurus ID 15
 0.0009
P638 PDB structure ID 15
 0.0006
P8121 UM-BBD compound ID 14
 0.0143
P1051 PSH ID 14
 0.0023
P1296 Gran Enciclopèdia Catalana ID 14
 0.0001
P349 National Diet Library ID 14
 0.0001
P268 Bibliothèque nationale de France ID 14
 0.0000
P628 E number 13
 0.0208
P2057 Human Metabolome Database ID 13
 0.0021

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P2072 CDB Chemical ID 4
 0.0580
P695 UN number 18
 0.0331
P5220 ICSC ID 43
 0.0258
P657 RTECS number 39
 0.0226
P628 E number 13
 0.0208
P8121 UM-BBD compound ID 14
 0.0143
P8491 AHECC 2017 ID 3
 0.0141
P9850 Enciclopedia dell'Arte Medievale ID 1
 0.0100
P1820 Open Food Facts food additive ID 4
 0.0100
P700 Kemler code 1
 0.0093
P1578 Gmelin number 29
 0.0092
P2062 HSDB ID 52
 0.0091
P10037 Enciclopedia della Scienza e della Tecnica ID 1
 0.0090
P7889 Cambridge Encyclopedia of Anthropology ID 1
 0.0085
P679 ZVG number 57
 0.0080
P6852 CCDC Number 1
 0.0077
P9941 Dizionario di Economia e Finanza ID 1
 0.0075
P10022 Dizionario di Medicina ID 1
 0.0074
P10017 Dizionario delle Scienze Fisiche ID 1
 0.0071
P5417 Common Procurement Vocabulary 3
 0.0069
P7524 CA PROP 65 ID 6
 0.0068
P9983 Enciclopedia dei ragazzi ID 1
 0.0066
P2085 Nikkaji ID 4
 0.0061
P9734 Treccani's Enciclopedia Dantesca ID 1
 0.0057
P5064 World of Physics identifier 1
 0.0055
P2115 NDF-RT ID 17
 0.0052
P7025 HCIS ID 19
 0.0051
P2167 UNSPSC Code 7
 0.0051
P5076 Römpp online ID 8
 0.0050
P3073 CosIng number 25
 0.0049
P5930 Open Food Facts ingredient ID 4
 0.0038
P3345 RxNorm ID 32
 0.0035
P9775 Treccani's Lessico del XXI Secolo ID 1
 0.0034
P7049 AICS Chemical ID (former scheme) 55
 0.0033
P7822 Italian Vikidia ID 3
 0.0033
P9635 electronic Essential Medicines List medicine ID 1
 0.0032
P4466 Unified Astronomy Thesaurus ID 3
 0.0030
P4964 SPLASH 22
 0.0028
P9863 Gujarati Vishwakosh entry 1
 0.0027
P7827 Spanish Vikidia ID 4
 0.0025
P2612 TED topic ID 1
 0.0024
P1051 PSH ID 14
 0.0023
P7832 Basque Vikidia ID 2
 0.0023
P2057 Human Metabolome Database ID 13
 0.0021
P5844 Treccani Vocabulary ID 1
 0.0017
P7686 Encyclopedia of the Great Plains ID 1
 0.0017
P8885 Namuwiki ID 5
 0.0016
P1579 Reaxys registry number 30
 0.0016
P10077 Spanish Cultural Heritage thesauri ID 3
 0.0016
P7901 Encyclopedia of Chicago ID 1
 0.0015