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Diethyl cyanophosphonate

Also known as: Cyanophosphonic acid diethyl ester, Diethyl phosphorocyanidate, Diethyl phosphoryl cyanide, Diethoxyphosphoryl cyanide, Diethyl cyanidophosphate, Diethyl cyanophosphate, DEPC, MFCD00010256, Phosphorocyanidic acid, O,O-diethyl ester

Diethyl cyanophosphonate (CAS 2942-58-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10NO3P and a molecular weight of 163.112 g/mol. Key properties include a boiling point of 214.2±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 80.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2942-58-7
Jingsj CID
J-1019585-4
Molecular Formula
C5H10NO3P
Molecular Weight
163.112 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point214.2±9.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point80.6±0.0 °C
Exact Mass163.039825
PSA69.13000
LogP0.04
Vapor Pressure0.2±0.4 mmHg at 25°C
Refractive Index1.416
Additional PropertyDECOMPOSES

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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 cyanophosphonate?

The CAS number of Diethyl cyanophosphonate is 2942-58-7.

What are the molecular formula and molecular weight of Diethyl cyanophosphonate?

Diethyl cyanophosphonate has molecular formula C5H10NO3P and molecular weight 163.112 g/mol.

Is Diethyl cyanophosphonate hazardous?

Diethyl cyanophosphonate has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

What are the upstream and downstream products of Diethyl cyanophosphonate?

For Diethyl cyanophosphonate, Upstream Products: Diethyl phosphite, Chlorocarbonylsulfenyl chloride, Cyanogen bromide; Downstream Products: 4-Cyanotetrahydro-4H-pyran, 4-chloroquinoline-2-carbonitrile, 4-Phenylbutanenitrile.

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 cyanophosphonate (CAS 2942-58-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1019585-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.