The Cambridge Stuctural Database (CSD) is the world's most comprehensive collection of small-molecule crystal structures. Entries curated into the CSD are identified by a CSD Refcode.

Prefix
csd
Keywords
atomic coordinate biochemistry chemistry organic chemistry organic molecular chemistry protein structure structure x-ray diffraction
Links
Homepage
Publications
2016 The Cambridge Structural Database
2002 The Cambridge Structural Database: a quarter of a million crystal structures and rising
Identifier Standards
Pattern for Local Unique Identifiers
Local unique identifiers in Cambridge Structural Database should match this regular expression:
^[A-Z]{6}(\d{2})?$
Example Local Unique Identifier
PELNAW   Resolve
Pattern for CURIES
Compact URIs (CURIEs) constructed from Cambridge Structural Database should match this regular expression:
^csd:[A-Z]{6}(\d{2})?$
Example CURIE
csd:PELNAW
Contacts
Mappings to External Registries

Mappings from records in Bioregistry to external registries comprises the metaregistry. This resource has 3 mappings to external registries with 3 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
FAIRsharing FAIRsharing logo fairsharing FAIRsharing.vs7865
Identifiers.org namespace Identifiers.org namespace logo miriam csd
re3data Registry of Research Data Repositories logo re3data r3d100010197
Providers

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier PELNAW is used to demonstrate the providers available for Cambridge Structural Database. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Provider Name Provider Code URI
Cambridge Structural Database csd https://www.ccdc.cam.ac.uk/services/structures?pid=csd:PELNAW&sid=IDORG
Bioregistry bioregistry https://bioregistry.io/csd:PELNAW
Identifiers.org namespace miriam https://identifiers.org/csd:PELNAW