As of 2019-11-04, the Wikidata property CAS Registry Number (P231) is used on 126,947 items.

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

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P235 InChIKey 68,836
0.3174
P234 InChI 68,136
0.3168
P662 PubChem CID 67,191
0.3166
P661 ChemSpider ID 67,135
0.3658
P652 UNII 56,990
0.4395
P232 EC number 39,600
0.3119
P3117 DSSTOX substance identifier 32,786
0.2468
P2566 ECHA InfoCard ID 31,391
0.2472
P592 ChEMBL ID 26,605
0.1774
P683 ChEBI ID 23,927
0.1249
P1579 Reaxys registry number 12,537
0.0940
P665 KEGG ID 12,347
0.0947
P646 Freebase ID 7,237
0.0052
P4964 SPLASH 7,050
0.0552
P3345 RxNorm CUI 6,596
0.0510
P486 MeSH descriptor ID 6,449
0.0422
P679 ZVG number 6,344
0.0500
P715 DrugBank ID 6,104
0.0467
P6689 MassBank Accession ID 5,802
0.0442
P2064 KNApSAcK ID 3,913
0.0307
P2057 HMDB ID 3,616
0.0280
P638 PDB structure ID 3,418
0.0228
P2063 LIPID MAPS ID 3,405
0.0262
P595 Guide to Pharmacology Ligand ID 3,129
0.0241
P2115 NDF-RT ID 3,042
0.0239
P2892 UMLS CUI 2,509
0.0172
P1578 Gmelin number 2,315
0.0181
P267 ATC code 1,861
0.0146
P1417 Encyclopædia Britannica Online ID 1,685
0.0059
P657 RTECS number 1,679
0.0132
P5076 Römpp online ID 1,301
0.0102
P3636 PDB ligand ID 1,156
0.0091
P4168 IEDB Epitope ID 1,088
0.0085
P3417 Quora topic ID 972
0.0032
P1296 Gran Enciclopèdia Catalana ID 910
0.0040
P227 GND ID 873
0.0009
P6694 MeSH concept ID 594
0.0047
P672 MeSH code 538
0.0040
P2085 Nikkaji ID 499
0.0039
P695 UN number 485
0.0038
P1014 AAT ID 457
0.0031
P508 BNCF Thesaurus ID 437
0.0031
P628 E number 436
0.0034
P3827 JSTOR topic ID 414
0.0027
P244 Library of Congress authority ID 396
0.0003
P2924 Great Russian Encyclopedia Online ID 395
0.0023
P4746 Elhuyar ZTH ID 350
0.0026
P349 National Diet Library Auth ID 342
0.0014
P3219 Encyclopædia Universalis ID 270
0.0017
P2167 UNSPSC Code 249
0.0019

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P652 UNII 56,990
0.4395
P661 ChemSpider ID 67,135
0.3658
P235 InChIKey 68,836
0.3174
P234 InChI 68,136
0.3168
P662 PubChem CID 67,191
0.3166
P232 EC number 39,600
0.3119
P2566 ECHA InfoCard ID 31,391
0.2472
P3117 DSSTOX substance identifier 32,786
0.2468
P592 ChEMBL ID 26,605
0.1774
P683 ChEBI ID 23,927
0.1249
P665 KEGG ID 12,347
0.0947
P1579 Reaxys registry number 12,537
0.0940
P4964 SPLASH 7,050
0.0552
P3345 RxNorm CUI 6,596
0.0510
P679 ZVG number 6,344
0.0500
P715 DrugBank ID 6,104
0.0467
P6689 MassBank Accession ID 5,802
0.0442
P486 MeSH descriptor ID 6,449
0.0422
P2064 KNApSAcK ID 3,913
0.0307
P2057 HMDB ID 3,616
0.0280
P2063 LIPID MAPS ID 3,405
0.0262
P595 Guide to Pharmacology Ligand ID 3,129
0.0241
P2115 NDF-RT ID 3,042
0.0239
P638 PDB structure ID 3,418
0.0228
P1578 Gmelin number 2,315
0.0181
P2892 UMLS CUI 2,509
0.0172
P267 ATC code 1,861
0.0146
P657 RTECS number 1,679
0.0132
P5076 Römpp online ID 1,301
0.0102
P3636 PDB ligand ID 1,156
0.0091
P4168 IEDB Epitope ID 1,088
0.0085
P1417 Encyclopædia Britannica Online ID 1,685
0.0059
P646 Freebase ID 7,237
0.0052
P6694 MeSH concept ID 594
0.0047
P1296 Gran Enciclopèdia Catalana ID 910
0.0040
P672 MeSH code 538
0.0040
P2085 Nikkaji ID 499
0.0039
P695 UN number 485
0.0038
P628 E number 436
0.0034
P3417 Quora topic ID 972
0.0032
P508 BNCF Thesaurus ID 437
0.0031
P1014 AAT ID 457
0.0031
P3827 JSTOR topic ID 414
0.0027
P4746 Elhuyar ZTH ID 350
0.0026
P2924 Great Russian Encyclopedia Online ID 395
0.0023
P2167 UNSPSC Code 249
0.0019
P3219 Encyclopædia Universalis ID 270
0.0017
P1051 PSH ID 214
0.0016
P3471 WikiSkripta ID 189
0.0015
P7049 AICS Chemical ID 181
0.0014