As of 2022-03-07, the Wikidata property Colour Index International constitution ID (P2027) is used on 145 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
P31 instance of 143
 0.0000
P231 CAS Registry Number 140
 0.0001
P2566 ECHA InfoCard ID 135
 0.0024
P232 EC number 133
 0.0024
P3117 DSSTox substance ID 127
 0.0001
P235 InChIKey 124
 0.0001
P234 InChI 123
 0.0001
P7049 AICS Chemical ID (former scheme) 120
 0.0073
P662 PubChem CID 116
 0.0001
P8494 DSSTOX compound identifier 115
 0.0001
P661 ChemSpider ID 114
 0.0009
P233 canonical SMILES 114
 0.0001
P274 chemical formula 112
 0.0001
P2067 mass 104
 0.0003
P646 Freebase ID 94
 0.0000
P652 UNII 93
 0.0014
P117 chemical structure 85
 0.0053
P6366 Microsoft Academic ID 74
 0.0003
P679 ZVG number 64
 0.0088
P2840 NSC number 56
 0.0005
P683 ChEBI ID 52
 0.0005
P3073 CosIng number 50
 0.0097
P2062 HSDB ID 47
 0.0081
P592 ChEMBL ID 38
 0.0008
P373 Commons category 37
 0.0000
P366 has use 36
 0.0005
P2017 isomeric SMILES 36
 0.0001
P486 MeSH descriptor ID 34
 0.0009
P628 E number 33
 0.0476
P2868 subject has role 33
 0.0001
P18 image 30
 0.0000
P527 has part or parts 29
 0.0000
P10283 OpenAlex ID 28
 0.0003
P3345 RxNorm ID 27
 0.0029
P1579 Reaxys registry number 27
 0.0014
P665 KEGG ID 25
 0.0012
P1820 Open Food Facts food additive ID 23
 0.0489
P2671 Google Knowledge Graph ID 23
 0.0000
P4952 safety classification and labelling 21
 0.0137
P1417 Encyclopædia Britannica Online ID 19
 0.0001
P7025 HCIS ID 18
 0.0047
P715 DrugBank ID 18
 0.0015
P1343 described by source 18
 0.0000
P1014 Art & Architecture Thesaurus ID 17
 0.0007
P2101 melting point 17
 0.0005
P5076 Römpp online ID 16
 0.0096
P657 RTECS number 16
 0.0087
P4342 Store norske leksikon ID 13
 0.0002
P5220 ICSC ID 12
 0.0067
P10077 Spanish Cultural Heritage thesauri ID 12
 0.0060

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P1820 Open Food Facts food additive ID 23
 0.0489
P628 E number 33
 0.0476
P4952 safety classification and labelling 21
 0.0137
P2107 decomposition point 4
 0.0111
P2177 solubility 6
 0.0109
P2119 vapor pressure 8
 0.0104
P2404 time-weighted average exposure limit 7
 0.0099
P3073 CosIng number 50
 0.0097
P5076 Römpp online ID 16
 0.0096
P1931 NIOSH Pocket Guide ID 8
 0.0094
P2129 immediately dangerous to life or health 5
 0.0093
P679 ZVG number 64
 0.0088
P657 RTECS number 16
 0.0087
P2062 HSDB ID 47
 0.0081
P7049 AICS Chemical ID (former scheme) 120
 0.0073
P7524 CA PROP 65 ID 7
 0.0072
P2542 acceptable daily intake 1
 0.0068
P5220 ICSC ID 12
 0.0067
P4849 International Numbering System number 1
 0.0067
P1109 refractive index 2
 0.0064
P7253 color produced 1
 0.0063
P10077 Spanish Cultural Heritage thesauri ID 12
 0.0060
P2113 sublimation temperature 1
 0.0058
P2300 minimal lethal dose 1
 0.0056
P117 chemical structure 85
 0.0053
P3078 standard enthalpy of formation 2
 0.0051
P9635 electronic Essential Medicines List medicine ID 2
 0.0050
P2054 density 8
 0.0049
P7025 HCIS ID 18
 0.0047
P2240 median lethal dose (LD50) 1
 0.0044
P5930 Open Food Facts ingredient ID 5
 0.0044
P2085 Nikkaji ID 3
 0.0040
P8224 molecular model or crystal lattice model 7
 0.0038
P2102 boiling point 4
 0.0038
P8491 AHECC 2017 ID 1
 0.0033
P2405 ceiling exposure limit 1
 0.0031
P2115 NDF-RT ID 10
 0.0030
P3345 RxNorm ID 27
 0.0029
P1117 pKa 1
 0.0028
P9272 DeCS ID 5
 0.0027
P1578 Gmelin number 8
 0.0025
P2566 ECHA InfoCard ID 135
 0.0024
P232 EC number 133
 0.0024
P2260 ionization energy 1
 0.0023
P4168 IEDB Epitope ID 7
 0.0021
P3338 Encyclopedia of Surfing ID 1
 0.0021
P2167 UNSPSC Code 3
 0.0020
P1542 has effect 8
 0.0019
P2128 flash point 1
 0.0018
P695 UN number 1
 0.0015