spiropyran
type: Thing
alternate name: spiropyrans
description: any chemical compound having the pyran ring in the spiro system
additional property: PropertyValue
  property ID: P31
  value: structural class of chemical entities
additional property: PropertyValue
  property ID: P279
  value: spiro compound
additional property: PropertyValue
  property ID: P279
  value: pyran
additional property: PropertyValue
  property ID: P646
  value: /m/0nfwsd_
additional property: PropertyValue
  property ID: P6366
  value: 2780658000
additional property: PropertyValue
  property ID: P10283
  value: C2780658000
confidence:
  popularity graph score:
    score: 0.006
    score pct: 1
    tier: long_tail
    components:
      sitelinks: 7
      sitelinks norm: 0.017
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 129
      monthly pageviews norm: 0.0
  sitelinks: 7
  unique citations: 1
  monthly pageviews: 129
  yearly pageviews: 289
  pageview trend:
    m: 2026-08
    v: 129
  pageview trend:
    m: 2026-07
    v: 22
  pageview trend:
    m: 2026-06
    v: 55
  pageview trend:
    m: 2026-05
    v: 11
  pageview trend:
    m: 2026-05
    v: 15
  pageview trend:
    m: 2026-05
    v: 2
  pageview trend:
    m: 2026-04
    v: 1
  pageview trend:
    m: 2026-04
    v: 54
  popularity:
    sitelinks: 7
    max: 423
    pct: 1.7
  tier: long_tail
claims:
  P31:
    value: Q47154513
    source count: 0
    confidence: 0.0
    value label: structural class of chemical entities
  P279:
    value: Q424180
    source count: 0
    confidence: 0.0
    value label: spiro compound
  P279:
    value: Q64745910
    source count: 0
    confidence: 0.0
    value label: pyran
  P646:
    value: /m/0nfwsd_
    source count: 0
    confidence: 0.0
  P6366:
    value: 2780658000
    source count: 0
    confidence: 0.0
  P10283:
    value: C2780658000
    source count: 1
    confidence: 0.2
citations:
  source: OpenAlex
  stated in qid: Q107507571
  retrieved: 2022-01-26
meta:
  wikidata id: Q7578192
  domain: structural_class_of_chemical_entities
  level: standard
  html url: https://4ort.xyz/entity/spiropyran
  markdown url: https://4ort.xyz/entity/spiropyran.md
  facts url summary: https://4ort.xyz/entity/spiropyran/facts.json
  facts url standard: https://4ort.xyz/entity/spiropyran/facts.json
  facts url full: https://4ort.xyz/entity/spiropyran/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-24T01:53:27.683922Z
  entity updated at: 2026-05-03T22:54:58.348740+00:00Z
  entity created at: 2026-04-10T23:31:20.299746+00:00Z