Wikidata:Property proposal/CCDC Number

Description	indentifier for a single crystal structure per the Cambridge Crystallographic Data Centre (CCDC)
Represents	Cambridge Crystallographic Data Centre (Q5025404)
Data type	External identifier
Domain	chemical compound (Q11173)
Allowed values	\w{3,12}
Example 1	ammonium oxalate (Q419626) → MOYHAJ
Example 2	2-iodobenzoic acid (Q2535469) → OIBZAC01
Example 3	ferric acetylacetonate (Q7843940) → FEACAC03
Source	The Cambridge Crystallographic Data Centre
Number of IDs in source	> 1000000 (stats)
Expected completeness	always incomplete (Q21873886)
Formatter URL	https://www.ccdc.cam.ac.uk/structures/Search?Ccdcid=$1
See also	CAS Registry Number (P231)

Every substance with a single crystal structure has its CCDC number. --Leiem (talk) 14:25, 28 May 2019 (UTC)[reply]

Support -- 宇帆（talk·留言·歡迎簽到_R₁R₂NKC） 15:05, 28 May 2019 (UTC)[reply]
Support Important database to link to. ArthurPSmith (talk) 17:31, 28 May 2019 (UTC)[reply]
Support Dhx1 (talk) 00:07, 31 May 2019 (UTC)[reply]
Support. ··· 🌸 Rachmat04 · ☕ 11:04, 31 May 2019 (UTC)[reply]
Support Jneubert (talk) 22:02, 31 May 2019 (UTC)[reply]
Do we want the deposition number or the database number? 179601 also returns 2-iodobenzoic acid. From Pubchem they link to the deposition number. So it might be easier for data matching. Or maybe we should get both in different properties... redundancy? --99of9 (talk) 04:11, 1 June 2019 (UTC)[reply]
- @Leiem: -- 宇帆（talk·留言·歡迎簽到_R₁R₂NKC） 06:58, 1 June 2019 (UTC)[reply]
  - I think both are okay. Different database may link to either the deposition number or the database number. --Leiem (talk) 12:36, 1 June 2019 (UTC)[reply]