5-Ethyl-5-methylhydantoin

5-甲基-5-乙基海因

Also known as: 2,4-Imidazolidinedione, 5-ethyl-5-methyl-, 5-ETHYL-5-METHYL2,4-IMIDAZOLIDINEDIONE(MEH), 5-ETHYL-5-METHYLHYDANTOIN(MEH), 5-Ethyl-5-methyl-2,4-imidazolidinedione, 5-Ethyl-5-methylhydantoin(MEH), 5-ethyl-5-methyl-4-imidazolidinedione, 5-ethyl-5-methyl-hydantoi, 5-ethyl-5-methylimidazolidine-2,4-dione, 5-methyl-5-ethylhydantoin, MEH, MFCD00022402, TIMTEC-BB SBB008129, UNII:9434G2C47P, EINECS 226-402-8

5-Ethyl-5-methylhydantoin (CAS 16820-12-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H10N2O2 and a molecular weight of 142.156 g/mol. It is also known as 2,4-Imidazolidinedione, 5-ethyl-5-methyl-, 5-ETHYL-5-METHYL2,4-IMIDAZOLIDINEDIONE(MEH) and 5-ETHYL-5-METHYLHYDANTOIN(MEH). Key properties include a melting point of 144-150 °C(lit.), a boiling point of 259.72 °C and a density of 1.1±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16820-12-5
Jingsj CID
J-37017-8
Molecular Formula
C6H10N2O2
Chinese Name
5-甲基-5-乙基海因
Molecular Weight
142.156 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point144-150 °C(lit.)
Boiling Point259.72 °C
Density1.1±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 5-Ethyl-5-methylhydantoin?

The CAS number of 5-Ethyl-5-methylhydantoin is 16820-12-5.

What are the molecular formula and molecular weight of 5-Ethyl-5-methylhydantoin?

5-Ethyl-5-methylhydantoin has molecular formula C6H10N2O2 and molecular weight 142.156 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Ethyl-5-methylhydantoin (CAS 16820-12-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37017-8 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.