T

Triphenylphosphine oxide

IUPAC: diphenylphosphorylbenzene

C18H15OP Laboratory Reagents CAS 791-28-6
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Quick Reference
Formula / NotationC18H15OP
CAS Number791-28-6
Molecular Weight278.3
AppearanceSolid; [IUCLID] Beige crystalline solid; [Aldrich MSDS]
Also Known Asdiphenylphosphorylbenzene; 791-28-6; Phosphine oxide, triphenyl-; Triphenyl phosphine oxide; Triphenyl phosphorus oxide; DTXSID2022121; TRIPHENYLPHOSPHINE MONOXIDE; Z69161FKI3; phosphorane, triphenyl-, oxide; DTXCID402121
CategoryLaboratory Reagents

What is Triphenylphosphine oxide?

Triphenylphosphane oxide is a phosphine oxide in which the substituents on phosphorus are three phenyl groups.

Formula & Notation

C18H15OP

IUPAC Name: diphenylphosphorylbenzene

Other Names / Synonyms: diphenylphosphorylbenzene; 791-28-6; Phosphine oxide, triphenyl-; Triphenyl phosphine oxide; Triphenyl phosphorus oxide; DTXSID2022121; TRIPHENYLPHOSPHINE MONOXIDE; Z69161FKI3; phosphorane, triphenyl-, oxide; DTXCID402121

Properties & Characteristics

Appearance: Solid; [IUCLID] Beige crystalline solid; [Aldrich MSDS]. Molecular formula: C18H15OP. Molecular weight: 278.3 g/mol. LogP: 2.8.

Physical Data

PropertyValue
Molecular Weight278.3
AppearanceSolid; [IUCLID] Beige crystalline solid; [Aldrich MSDS]

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Triphenylphosphine oxide
Formula C18H15OP
CAS Number 791-28-6
Molecular Weight 278.3
Synonyms diphenylphosphorylbenzene; 791-28-6; Phosphine oxide, triphenyl-; Triphenyl phosphine oxide; Triphenyl phosphorus oxide; DTXSID2022121; TRIPHENYLPHOSPHINE MONOXIDE; Z69161FKI3; phosphorane, triphenyl-, oxide; DTXCID402121

Frequently Asked Questions

Triphenylphosphane oxide is a phosphine oxide in which the substituents on phosphorus are three phenyl groups.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.