appears_in: []
contributor:
  email: cthoyt@gmail.com
  github: cthoyt
  name: Charles Tapley Hoyt
  orcid: 0000-0003-4423-4370
depends_on: []
deprecated: false
description: identifier for a chemical compound per EINECS or ELINCS
example: 200-003-9
example_extras: []
homepage: https://echa.europa.eu/information-on-chemicals
keywords: []
mappings:
  cheminf: '000447'
  wikidata: P232
name: EC number
namespace_in_lui: false
pattern: ^\d{3}-\d{3}-\d$
preferred_prefix: ecn
prefix: ecn
providers: []
publications: []
references:
- https://github.com/biopragmatics/bioregistry/issues/257
- https://en.wikipedia.org/wiki/European_Community_number
synonyms: []
uri_format: https://www.echa.europa.eu/information-on-chemicals/ec-inventory/-/dislist/details/$1
