diethyl (chloromethyl)phosphonate
Also known as: Diethyl chloromethylphosphonate, (Chloromethyl)phosphonic acid diethyl ester, ClCH2P(O)(OEt)2, Diethyl (chloromethyl)phosphonate, Phosphonic acid, (chloromethyl)-, diethyl ester, chloromethylphosphonic acid diethylester
diethyl (chloromethyl)phosphonate (CAS 3167-63-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H12ClO3P and a molecular weight of 186.57400 g/mol. Key properties include a boiling point of 242.9ºC at 760mmHg, a density of 1.17g/cm3 and a flash point of 74.3ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3167-63-3
- Jingsj CID
- J-32590-6
- Molecular Formula
- C5H12ClO3P
- Molecular Weight
- 186.57400 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 242.9ºC at 760mmHg |
|---|---|
| Density | 1.17g/cm3 |
| Flash Point | 74.3ºC |
| Exact Mass | 186.02100 |
| PSA | 45.34000 |
| LogP | 2.44880 |
| Refractive Index | n20/D 1.437(lit.) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 (chloromethyl)phosphonate?
The CAS number of diethyl (chloromethyl)phosphonate is 3167-63-3.
What are the molecular formula and molecular weight of diethyl (chloromethyl)phosphonate?
diethyl (chloromethyl)phosphonate has molecular formula C5H12ClO3P and molecular weight 186.57400 g/mol.
Is diethyl (chloromethyl)phosphonate hazardous?
diethyl (chloromethyl)phosphonate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
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 (chloromethyl)phosphonate (CAS 3167-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32590-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.