1-(2-chloroethyl)imidazolidin-2-one

Also known as: 1-(2-chloroethyl)imidazolidin-2-one, 2-Imidazolidinone, 1-(2-chloroethyl)-, N-(2-chloroethyl)imidazolidinone, N-(β-Chloroethyl)-N,N'-ethyleneurea, NSC 76791, chloroethylimidazolidinone, 2-chloroethylimidazolidone

1-(2-chloroethyl)imidazolidin-2-one (CAS 2387-20-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9ClN2O and a molecular weight of 148.591 g/mol. Key properties include a boiling point of 347.5±21.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 164.0±22.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2387-20-4
Jingsj CID: J-37774-2
Molecular Formula: C₅H₉ClN₂O
Molecular Weight: 148.591 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	347.5±21.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	164.0±22.1 °C
Exact Mass	148.040344
PSA	32.34000
LogP	0.18
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.490

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(2-chloroethyl)imidazolidin-2-one?

The CAS number of 1-(2-chloroethyl)imidazolidin-2-one is 2387-20-4.

What are the molecular formula and molecular weight of 1-(2-chloroethyl)imidazolidin-2-one?

1-(2-chloroethyl)imidazolidin-2-one has molecular formula C5H9ClN2O and molecular weight 148.591 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "1-(2-chloroethyl)imidazolidin-2-one (CAS 2387-20-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37774-2 (accessed 2026-11-09).

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