Diethyl (hydroxymethyl)phosphonate
Also known as: (Hydroxymethyl)phosphonic acid diethyl ester, Diethyl phosphonomethanol, Diethyl (hydroxymethyl)phosphonate, tech., DIETHYL HYDROXYMETHYLPHOSPHONATE, Diethyl P-(hydroxymethyl)phosphonate, AURORA KA-1421, 4-Hydroxymethyldiethylphosphonate, Phosphonic acid, (hydroxymethyl)-, diethyl ester, Phosphonic acid, P-(hydroxymethyl)-, diethyl ester, diethyl hydroxy-methanephosphonate, diethyl hydroxymethylphosphonate
Diethyl (hydroxymethyl)phosphonate (CAS 3084-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H13O4P and a molecular weight of 168.128 g/mol. Key properties include a boiling point of 239.5±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 98.7±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3084-40-0
- Jingsj CID
- J-44847-5
- Molecular Formula
- C5H13O4P
- Molecular Weight
- 168.128 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 239.5±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 98.7±22.6 °C |
| Exact Mass | 168.055145 |
| PSA | 65.57000 |
| LogP | -1.12 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.424 |
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 Diethyl (hydroxymethyl)phosphonate?
The CAS number of Diethyl (hydroxymethyl)phosphonate is 3084-40-0.
What are the molecular formula and molecular weight of Diethyl (hydroxymethyl)phosphonate?
Diethyl (hydroxymethyl)phosphonate has molecular formula C5H13O4P and molecular weight 168.128 g/mol.
What are the upstream and downstream products of Diethyl (hydroxymethyl)phosphonate?
For Diethyl (hydroxymethyl)phosphonate, Upstream Products: Diethyl phosphite, Formaldehyde, Benzocaine; Downstream Products: diethyl (chloromethyl)phosphonate, Diethyl (phthalimidomethyl)phosphonate, Diethyl [(phenylthio)methyl]phosphonate.
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 (hydroxymethyl)phosphonate (CAS 3084-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44847-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.