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Diethyl phosphoramidate

Also known as: Amidophosphoric acid diethyl ester, Diethyl amidophosphate, Diethyl amidophosphonate, Diethyl phosphoryl amide, Phosphoramidic acid, diethyl ester, O,O'-Diethylphosphoramidate, Diethyl aminophosphonate, NSC 56755, [amino(ethoxy)phosphoryl]oxyethane, [azanyl(ethoxy)phosphoryl]oxyethane, diethoxyphosphorylamine, MFCD00015676

Diethyl phosphoramidate (CAS 1068-21-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H12NO3P and a molecular weight of 153.11700 g/mol. Key properties include a melting point of 51-53ºC(lit.), a boiling point of 309.1ºC at 760 mmHg, a density of 1.133 g/cm3 and a flash point of 140.7ºC. 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.
1068-21-9
Jingsj CID
J-27038-2
Molecular Formula
C4H12NO3P
Molecular Weight
153.11700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point51-53ºC(lit.)
Boiling Point309.1ºC at 760 mmHg
Density1.133 g/cm3
Flash Point140.7ºC
Exact Mass153.05500
PSA71.36000
LogP1.82650
Appearancesolid
Vapor Pressure0.000652mmHg at 25°C
Refractive Index1.424

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2929909090
Summary2929909090 other compounds with other nitrogen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diethyl phosphoramidate?

The CAS number of Diethyl phosphoramidate is 1068-21-9.

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

Diethyl phosphoramidate has molecular formula C4H12NO3P and molecular weight 153.11700 g/mol.

Is Diethyl phosphoramidate hazardous?

Diethyl phosphoramidate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Diethyl phosphoramidate?

For Diethyl phosphoramidate, Upstream Products: Diethyl phosphite, Phosphonic acid, P-(1-cyanoethyl)-, diethyl ester, 2,2,3-trimethylbutane; Downstream Products: Diethyl phosphate, DIETHOXYPHOSPHINYL ISOCYANATE.

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 phosphoramidate (CAS 1068-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27038-2 (accessed 2026-11-09).

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