Triphenylphosphine oxide, 98%

About Triphenylphosphine oxide, 98%

Triphenylphosphine oxide is a catalyst / ligand carrying the CAS registry number 791-28-6 with a typical assay of 98%. With the molecular formula C18H15OP, it has a molar mass of 278.3 g/mol. The IUPAC name is diphenylphosphorylbenzene. It is also known as Ph3PO or TPPO.

In its supplied form it is a white to orange to green powder. Reported physical data include a melting point of 150-157 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span cross-coupling reactions, homogeneous catalysis, asymmetric synthesis and organic synthesis. Typical end-use sectors are academic and industrial research, pharmaceutical manufacturing and oil, gas and petrochemicals.

Standard pack sizes are 25 g, 100 g, 500 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Cross-coupling reactions
Homogeneous catalysis
Asymmetric synthesis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Triphenylphosphine oxide, 98%
Catalogue No.	VQ-018671
CAS Number	791-28-6
IUPAC name	diphenylphosphorylbenzene
Molecular formula	C₁₈H₁₅OP
Molecular weight	278.3 g/mol
Exact mass	278.0861
Purity / assay	98%
HSN code	29319090
InChIKey	FIQMHBFVRAXMOP-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)C3=CC=CC=C3
PubChem CID	13097

Physical properties
Physical form	Powder
Appearance	White to orange to green powder
Melting point	150-157 °C
LogP (XLogP3)	2.8
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²
Synonyms	Ph3PO, TPPO, Triphenyl phosphorus oxide, Triphenylphosphine monoxide, Phosphine oxide, triphenyl-, Triphenyl phosphine oxide, phosphorane, triphenyl-, oxide, triphenylphosphane oxide, Triphenylphosphineoxide, (diphenylphosphoroso)benzene, triphenylphosphinoxide, Triphenylphosphanoxide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Triphenylphosphine oxide, 98%?

The CAS Registry Number of Triphenylphosphine oxide, 98% is 791-28-6. It is also known as Ph3PO, TPPO, Triphenyl phosphorus oxide.

What is the molecular formula and molecular weight of Triphenylphosphine oxide, 98%?

Triphenylphosphine oxide, 98% has the molecular formula C18H15OP and a molecular weight of 278.3 g/mol. Its IUPAC name is diphenylphosphorylbenzene.

Which grade and pack sizes of Triphenylphosphine oxide, 98% can I order?

We supply Triphenylphosphine oxide, 98% in (98%) grade, in 25 g, 100 g, 500 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Triphenylphosphine oxide, 98%?

Yes. Every lot of Triphenylphosphine oxide, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Triphenylphosphine oxide, 98% be shipped internationally?

Yes. Triphenylphosphine oxide, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.