The Cambridge Structural Database (CSD) is fast approaching 1 million structures and below you can see some statistics on this highly valuable collection of curated data. Based on the current rate of growth of the CSD, the millionth structure is predicted to added by July 2019 and you can read more about the countdown and how we define a million structures in our Blog Post

These statistics are generated weekly using the CSD Python API, and give a summary of the data available through our online Access Structures service. Additional statistics produced as an annual snapshot of the CSD are available from the Documentation and Resources page.

The number 'CSD Structures' refers to the number of unique crystallographic data collections deposited at the CCDC. The number of CSD entries is a slightly larger value, as each CSD entry corresponds to a published reference to a dataset.

CSD Growth

Number of Entries in CSD

978,949

Unique Structures in CSD

963,001

Unique Author Names

382,020

Unique Publications

476,488

Top Journals This Year

CSD Communications

This Year
2,304
To Date
26,058

Number of Refcode Families

890,279

Number of Polymorph Families

10,583

Structures with Melting Points

167,920

Milestone Structures

Number Refcode
200,000th VAVFAZ
250,000th IBEZUK
300,000th EHUFUI
500,000th EFEMUX01
750,000th ZOYBIA
800,000th TUWMOP
900,000th PATXEQ

Top Authors This Year