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Atomfair 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide C18H15O3P CAS 13291-46-8

2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS No. 13291-46-8) is a high-purity organophosphorus compound with the molecular formula C18H15O3P. This specialty chemical, also known as 2-diphenylphosphorylbenzene-1,4-diol , features a unique molecular structure combining a phosphoryl group with dihydroxyphenyl functionality, making it valuable for advanced synthetic and material science applications. The compound is supplied as a fine powder or crystalline solid with ≥95% purity (HPLC), ensuring consistency for research and industrial use. Its dual hydroxyl groups and phosphine oxide moiety enable versatile reactivity, particularly in coordination chemistry, ligand synthesis, and polymer modification. Proper storage under inert atmosphere at 2-8°C is recommended to maintain stability.

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Description

2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS No. 13291-46-8) is a high-purity organophosphorus compound with the molecular formula C18H15O3P. This specialty chemical, also known as 2-diphenylphosphorylbenzene-1,4-diol, features a unique molecular structure combining a phosphoryl group with dihydroxyphenyl functionality, making it valuable for advanced synthetic and material science applications. The compound is supplied as a fine powder or crystalline solid with ≥95% purity (HPLC), ensuring consistency for research and industrial use. Its dual hydroxyl groups and phosphine oxide moiety enable versatile reactivity, particularly in coordination chemistry, ligand synthesis, and polymer modification. Proper storage under inert atmosphere at 2-8°C is recommended to maintain stability.

Properties

  • CAS Number: 13291-46-8
  • Complexity: 377
  • IUPAC Name: 2-diphenylphosphorylbenzene-1,4-diol
  • InChI: InChI=1S/C18H15O3P/c19-14-11-12-17(20)18(13-14)22(21,15-7-3-1-4-8-15)16-9-5-2-6-10-16/h1-13,19-20H
  • InChI Key: LLOXZCFOAUCDAE-UHFFFAOYSA-N
  • Exact Mass: 310.07588133
  • Molecular Formula: C18H15O3P
  • Molecular Weight: 310.3
  • SMILES: C1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)C3=C(C=CC(=C3)O)O
  • Topological: 57.5
  • Monoisotopic Mass: 310.07588133
  • Synonyms: 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide, 679-771-6, 13291-46-8, 2-diphenylphosphorylbenzene-1,4-diol, 1,4-Benzenediol, 2-(diphenylphosphinyl)-, bis (benzyl diphenylphosphine) iminium chloride, DIPHENYLPHOSPHINYL HYDROQUINONE, 2-(diphenylphosphoryl)benzene-1,4-diol, 2-(diphenylphosphoroso)benzene-1,4-diol, MFCD00408436, 2,5-Dihydroxyphenyl(diphenyl)phosphineOxide, SCHEMBL35393, DTXSID60382657, STL010357, AKOS015911791, 2-(diphenylphosphinyl)-1,4-benzenediol, 2,5-dihydroxyphenyldiphenylphosphine oxide, DB-364211, CS-0203264, D3755, D90219, 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide, >/=97%

Application

This compound serves as a key intermediate in the synthesis of flame-retardant polymers due to its phosphorus-rich structure. Researchers utilize it as a ligand precursor for transition metal catalysts in cross-coupling reactions. The dihydroxyphenyl moiety enables applications in photoresist materials and as a building block for advanced organic electronic materials.

Safety and Hazards

GHS Hazard Statements

  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H411 (100%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

  • P264, P264+P265, P273, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364, P391, and P501

Hazard Classes and Categories

  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2 (100%)
  • Aquatic Chronic 2 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

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Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

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  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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