2-(Triphenylphosphoranylidene)propionaldehyde
Also known as: 2-(Triphenylphosphoranylidene)propanal, 1-Formylethylidenetriphenylphosphorane, Propanal, 2-(triphenylphosphoranylidene)-, 2-(TRIPHENYLPHOSPHORANYLIDENE)PROPIONALDEHYDE, MFCD00075596
2-(Triphenylphosphoranylidene)propionaldehyde (CAS 24720-64-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H19OP and a molecular weight of 318.349 g/mol. Key properties include a melting point of 219-221ºC(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.
- 24720-64-7
- Jingsj CID
- J-47462-4
- Molecular Formula
- C21H19OP
- Molecular Weight
- 318.349 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 219-221ºC(lit.) |
|---|---|
| Boiling Point | 478.5±28.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 243.2±24.0 °C |
| Exact Mass | 318.117340 |
| PSA | 26.88000 |
| LogP | 3.22 |
| Appearance | Low Melting Solid | White to pink to brown |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.611 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-(Triphenylphosphoranylidene)propionaldehyde?
The CAS number of 2-(Triphenylphosphoranylidene)propionaldehyde is 24720-64-7.
What are the molecular formula and molecular weight of 2-(Triphenylphosphoranylidene)propionaldehyde?
2-(Triphenylphosphoranylidene)propionaldehyde has molecular formula C21H19OP and molecular weight 318.349 g/mol.
What are the upstream and downstream products of 2-(Triphenylphosphoranylidene)propionaldehyde?
For 2-(Triphenylphosphoranylidene)propionaldehyde, Upstream Products: Ethyltriphenylphosphonium iodide, Ethyl formate, Ethyltriphenylphosphonium bromide; Downstream Products: Ethyltriphenylphosphonium iodide, Menthofuran, trans-2-Methyl-2-pentenal.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-(Triphenylphosphoranylidene)propionaldehyde (CAS 24720-64-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47462-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.