3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one

3-(2-氧代-2-苯乙基)-5,6-二氢吡嗪-2(1H)-酮

Also known as: 2(1H)-Pyrazinone, 5,6-dihydro-3-(2-oxo-2-phenylethyl)-, 3-(2-oxo-2-phenylethyl)-1,2,5,6-tetrahydropyrazin-2-one, 3-Phenacyl-2-hydroxy-dihydro-pyrazin, 3-Phenacyl-2-oxo-tetrahydro-pyrazin, 5-phenacyl-2,3-dihydro-1H-pyrazin-6-one, HMS1720C04

3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one (CAS 1821-59-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O2 and a molecular weight of 216.23600 g/mol. It is also known as 2(1H)-Pyrazinone, 5,6-dihydro-3-(2-oxo-2-phenylethyl)-, 3-(2-oxo-2-phenylethyl)-1,2,5,6-tetrahydropyrazin-2-one and 3-Phenacyl-2-hydroxy-dihydro-pyrazin. Key property: a density of 1.25g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1821-59-6
Jingsj CID
J-1329560-6
Molecular Formula
C12H12N2O2
Chinese Name
3-(2-氧代-2-苯乙基)-5,6-二氢吡嗪-2(1H)-酮
Molecular Weight
216.23600 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Density1.25g/cm3

Frequently Asked Questions

What is the CAS number of 3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one?

The CAS number of 3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one is 1821-59-6.

What are the molecular formula and molecular weight of 3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one?

3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one has molecular formula C12H12N2O2 and molecular weight 216.23600 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(2-oxo-2-phenylethyl)-5,6-dihydropyrazin-2(1H)-one (CAS 1821-59-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1329560-6 (accessed 2026-10-26).

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