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1-(Triphenylphosphoranylidene)-2-propanone

1-三苯基膦-2-丙酮

Also known as: (Acetylmethylene)triphenylphosphorane, (Methylcarbonylmethylene)triphenylphosphorane, (Triphenylphosphoranylidene)-2-propanone, 1-(Triphenylphosphoranylidene)-2-propanone, 1-(Triphenylphosphoranylidene)acetone, 1-(Triphenylphosphoranylidene)propan-2-one, 1-(triphenyl-λ5-phosphanylidene)propan-2-one, Triphenylphosphoranylidene-2-propanone, 1-Triphenylphosphoranylidene-2-propanone

1-(Triphenylphosphoranylidene)-2-propanone (CAS 1439-36-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C21H19OP and a molecular weight of 318.349 g/mol. It is also known as (Acetylmethylene)triphenylphosphorane, (Methylcarbonylmethylene)triphenylphosphorane and (Triphenylphosphoranylidene)-2-propanone. Key properties include a melting point of 203-205 °C(lit.), a boiling point of 478.5±28.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 243.2±24.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1439-36-7
Jingsj CID
J-32593-2
Molecular Formula
C21H19OP
Chinese Name
1-三苯基膦-2-丙酮
Molecular Weight
318.349 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point203-205 °C(lit.)
Boiling Point478.5±28.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point243.2±24.0 °C

Frequently Asked Questions

What is the CAS number of 1-(Triphenylphosphoranylidene)-2-propanone?

The CAS number of 1-(Triphenylphosphoranylidene)-2-propanone is 1439-36-7.

What are the molecular formula and molecular weight of 1-(Triphenylphosphoranylidene)-2-propanone?

1-(Triphenylphosphoranylidene)-2-propanone has molecular formula C21H19OP and molecular weight 318.349 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-(Triphenylphosphoranylidene)-2-propanone (CAS 1439-36-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32593-2 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.