Ethyldiphenylphosphine oxide
乙基二苯基氧化膦
Also known as: Diphenylethylphosphine oxide, AURORA KA-1563, Diphenylphosphinoethane monoxide, EINECS 217-068-4, MFCD00013912, Phosphine oxide, ethyldiphenyl-, Phosphine oxide, diphenylethyl-, [ethyl(phenyl)phosphoryl]benzene, diphenylethyl-phosphineoxid, ethyldiphenylphosphane oxide
Ethyldiphenylphosphine oxide (CAS 1733-57-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H15OP and a molecular weight of 230.24200 g/mol. It is also known as Diphenylethylphosphine oxide, AURORA KA-1563 and Diphenylphosphinoethane monoxide. Key properties include a melting point of 120-125 °C(lit.), a boiling point of 179-180°C 14mm, a density of 1,064 g/cm3 and a flash point of >110°C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1733-57-9
- Jingsj CID
- J-40449-1
- Molecular Formula
- C14H15OP
- Chinese Name
- 乙基二苯基氧化膦
- Molecular Weight
- 230.24200 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 120-125 °C(lit.) |
|---|---|
| Boiling Point | 179-180°C 14mm |
| Density | 1,064 g/cm3 |
| Flash Point | >110°C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Ethyldiphenylphosphine oxide?
The CAS number of Ethyldiphenylphosphine oxide is 1733-57-9.
What are the molecular formula and molecular weight of Ethyldiphenylphosphine oxide?
Ethyldiphenylphosphine oxide has molecular formula C14H15OP and molecular weight 230.24200 g/mol.
Is Ethyldiphenylphosphine oxide hazardous?
Ethyldiphenylphosphine oxide has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyldiphenylphosphine oxide (CAS 1733-57-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40449-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.