Diethyl (4-formylbenzyl)phosphonate
Also known as: 4-(DIETHYLPHOSPHONOMETHYL)BENZALDEHYDE, (4-formyl-benzyl)-phosphonic acid diethyl ester, (4-formylphenyl)methylphosphonic acid diethyl ester, 4-(Diethoxyphosphorylmethyl)benzaldehyde, 4-(Diethylphosphonomethyl)benzaldehyde, tech., 4-(diethoxyphosphorylmethyl)-1-benzaldehyde, 4-(diethyl phosphonomethyl)benzaldehyde, DIETHYL 4-FORMYLBENZYLPHOSPHONATE, Diethyl P-[(4-formylphenyl)methyl]phosphonate, Phosphonic acid, P-[(4-formylphenyl)methyl]-, diethyl ester, Phosphonic acid,[(4-formylphenyl)methyl]-,diethyl ester
Diethyl (4-formylbenzyl)phosphonate (CAS 125185-25-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H17O4P and a molecular weight of 256.235 g/mol. Key properties include a boiling point of 390.1±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 203.3±43.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 125185-25-3
- Jingsj CID
- J-1086899-2
- Molecular Formula
- C12H17O4P
- Molecular Weight
- 256.235 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 390.1±25.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 203.3±43.5 °C |
| Exact Mass | 256.086456 |
| PSA | 62.41000 |
| LogP | 1.48 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.519 |
Frequently Asked Questions
What is the CAS number of Diethyl (4-formylbenzyl)phosphonate?
The CAS number of Diethyl (4-formylbenzyl)phosphonate is 125185-25-3.
What are the molecular formula and molecular weight of Diethyl (4-formylbenzyl)phosphonate?
Diethyl (4-formylbenzyl)phosphonate has molecular formula C12H17O4P and molecular weight 256.235 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Diethyl (4-formylbenzyl)phosphonate (CAS 125185-25-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1086899-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.