o-phenylenediamine

chemical compound
ChemicalSubstance type_of_chemical_entity Q3596763
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o-phenylenediamine

Summary

o-phenylenediamine is a type of chemical entity[1]. o-phenylenediamine ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (86 views/month).[2]

Key Facts

  • o-phenylenediamine's instance of is recorded as type of chemical entity[3].
  • o-phenylenediamine's canonical SMILES is recorded as Nc1ccccc1N[4].
  • o-phenylenediamine's chemical formula is recorded as C₆H₈N₂[5].
  • o-phenylenediamine is a type of phenylenediamine[6].
  • o-phenylenediamine's Commons category is recorded as 1,2-Diaminobenzene[7].
  • o-phenylenediamine comprises nitrogen[8].
  • o-phenylenediamine comprises carbon[9].
  • o-phenylenediamine's mass is recorded as {'unit': 'Q483261', 'amount': '+108.06874825599999'}[10].
  • o-phenylenediamine's melting point is recorded as {'unit': 'Q25267', 'amount': '+103'}[11].
  • o-phenylenediamine's melting point is recorded as {'unit': 'Q25267', 'amount': '+102.0'}[12].
  • o-phenylenediamine's melting point is recorded as {'unit': 'Q25267', 'amount': '+102.5'}[13].
  • o-phenylenediamine's boiling point is recorded as {'unit': 'Q25267', 'amount': '+257'}[14].
  • o-phenylenediamine's ionization energy is recorded as {'unit': 'Q83327', 'amount': '+7.20'}[15].
  • o-phenylenediamine's subject has role is recorded as carcinogen[16].
  • o-phenylenediamine's safety classification and labelling is recorded as Regulation (EC) No. 1272/2008[17].
  • o-phenylenediamine's safety classification and labelling is recorded as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[18].

Why It Matters

o-phenylenediamine ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (86 views/month).[2] o-phenylenediamine has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[19] o-phenylenediamine is known by 14 alternative names across languages and contexts.[20]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Jean-Claude Bradley Open Melting Point Dataset. wikidata.org.
  11. [13] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  12. [14] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  13. [15] . Basic laboratory and industrial chemicals: A CRC quick reference handbook. wikidata.org.
  14. [16] . California Proposition 65 list of chemicals. Retrieved . oehha.ca.gov. Provenance: wikidata.org.
  15. [17] . sigmaaldrich.com. Retrieved . sigmaaldrich.com. Provenance: wikidata.org.
  16. [18] . sigmaaldrich.com. Retrieved . sigmaaldrich.com. Provenance: wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [19] . Wikidata sitelinks. wikidata.org.
  3. [20] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). o-phenylenediamine. Retrieved May 3, 2026, from https://4ort.xyz/entity/o-phenylenediamine
MLA “o-phenylenediamine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/o-phenylenediamine.
BibTeX @misc{4ortxyz_o-phenylenediamine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{o-phenylenediamine}}, year = {2026}, url = {https://4ort.xyz/entity/o-phenylenediamine}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): o-phenylenediamine — https://4ort.xyz/entity/o-phenylenediamine (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/o-phenylenediamine · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 24d ago · InternetArchiveBot bot · 2026-05-10 view diff on Wikidata ↗
    Has part(s) nitrogen, carbon
    Subclass of
    Subclass of phenylenediamine
    Aliases
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-references:1||1|2 */ [[Property:P10283]]: C2779327853, Rescuing 1 sources and submitting 0 for archiving. #IABot (v2.0.9.5)"
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