As of 2022-03-07, the Wikidata property MCN code (P1987) is used on 720 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
P646 Freebase ID 667
0.0002
P373 Commons category 568
0.0002
P31 instance of 558
0.0000
P6366 Microsoft Academic ID 518
0.0019
P652 UNII 428
0.0062
P231 CAS Registry Number 378
0.0004
P274 chemical formula 373
0.0004
P10283 OpenAlex ID 369
0.0037
P3117 DSSTox substance ID 368
0.0004
P232 EC number 365
0.0065
P2566 ECHA InfoCard ID 363
0.0065
P2067 mass 363
0.0011
P233 canonical SMILES 361
0.0004
P662 PubChem CID 361
0.0004
P235 InChIKey 361
0.0003
P661 ChemSpider ID 360
0.0029
P683 ChEBI ID 359
0.0033
P234 InChI 358
0.0003
P8494 DSSTOX compound identifier 349
0.0004
P18 image 338
0.0001
P592 ChEMBL ID 327
0.0065
P1417 Encyclopædia Britannica Online ID 323
0.0019
P279 subclass of 321
0.0001
P117 chemical structure 313
0.0190
P486 MeSH descriptor ID 312
0.0084
P665 KEGG ID 299
0.0147
P7049 AICS Chemical ID (former scheme) 282
0.0167
P8408 KBpedia ID 279
0.0072
P1579 Reaxys registry number 257
0.0131
P2062 HSDB ID 253
0.0408
P3345 RxNorm ID 252
0.0260
P4964 SPLASH 243
0.0295
P910 topic's main category 241
0.0004
P1343 described by source 236
0.0003
P715 DrugBank ID 234
0.0184
P2868 subject has role 233
0.0007
P227 GND ID 233
0.0002
P2840 NSC number 230
0.0021
P1296 Gran Enciclopèdia Catalana ID 230
0.0020
P3417 Quora topic ID 227
0.0012
P6689 MassBank accession ID 224
0.0195
P527 has part or parts 221
0.0003
P244 Library of Congress authority ID 214
0.0002
P679 ZVG number 193
0.0251
P1014 Art & Architecture Thesaurus ID 187
0.0077
P267 ATC code 174
0.0408
P508 BNCF Thesaurus ID 173
0.0102
P3827 JSTOR topic ID 169
0.0066
P8189 National Library of Israel J9U ID 168
0.0010
P2057 Human Metabolome Database ID 166
0.0247

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P5220 ICSC ID 131
0.0585
P657 RTECS number 119
0.0516
P5076 Römpp online ID 110
0.0511
P7524 CA PROP 65 ID 73
0.0494
P2119 vapor pressure 62
0.0481
P4952 safety classification and labelling 97
0.0477
P2275 World Health Organisation international non-proprietary name 137
0.0474
P3489 pregnancy category 81
0.0464
P2404 time-weighted average exposure limit 57
0.0462
P2177 solubility 49
0.0452
P1931 NIOSH Pocket Guide ID 62
0.0452
P2175 medical condition treated 113
0.0425
P10245 MedlinePlus drug identifier 83
0.0424
P6694 MeSH concept ID 62
0.0417
P2115 NDF-RT ID 157
0.0415
P2054 density 88
0.0413
P2062 HSDB ID 253
0.0408
P267 ATC code 174
0.0408
P8026 LiverTox likelihood score 51
0.0397
P4250 defined daily dose 62
0.0395
P2128 flash point 43
0.0394
P2102 boiling point 60
0.0381
P7830 LiverTox ID 53
0.0381
P2167 UNSPSC Code 69
0.0348
P8224 molecular model or crystal lattice model 81
0.0346
P2129 immediately dangerous to life or health 35
0.0324
P9635 electronic Essential Medicines List medicine ID 29
0.0307
P8121 UM-BBD compound ID 49
0.0306
P4964 SPLASH 243
0.0295
P2260 ionization energy 29
0.0294
P3780 active ingredient in 58
0.0284
P7025 HCIS ID 118
0.0275
P1578 Gmelin number 102
0.0274
P3345 RxNorm ID 252
0.0260
P679 ZVG number 193
0.0251
P695 UN number 30
0.0251
P2057 Human Metabolome Database ID 166
0.0247
P2202 lower flammable limit 22
0.0240
P2407 short-term exposure limit 20
0.0240
P1820 Open Food Facts food additive ID 25
0.0240
P8491 AHECC 2017 ID 20
0.0233
P129 physically interacts with 81
0.0233
P2107 decomposition point 21
0.0229
P1117 pKa 20
0.0220
P9272 DeCS ID 52
0.0218
P2203 upper flammable limit 19
0.0215
P5930 Open Food Facts ingredient ID 36
0.0213
P4235 PatientsLikeMe treatment ID 39
0.0211
P1109 refractive index 18
0.0207
P628 E number 26
0.0204