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5-Ethyl-6-methylpyrimidin-4(3H)-one

5-乙基-6-甲基嘧啶-4(3H)-酮

Also known as: 4(1H)-Pyrimidinone, 5-ethyl-6-methyl- (9CI), 4(3H)-Pyrimidinone, 5-ethyl-6-methyl-, 4-Pyrimidinol, 5-ethyl-6-methyl-, 5-Ethyl-6-methyl-4-pyrimidinol, 5-Ethyl-6-methylpyrimidin-4-ol, 5-ethyl-6-methyl-1H-pyrimidin-4-one, 5-Ethyl-6-MethylpyriMidin-4(3H)-one

5-Ethyl-6-methylpyrimidin-4(3H)-one (CAS 103980-63-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O and a molecular weight of 138.16700 g/mol. It is also known as 4(1H)-Pyrimidinone, 5-ethyl-6-methyl- (9CI), 4(3H)-Pyrimidinone, 5-ethyl-6-methyl- and 4-Pyrimidinol, 5-ethyl-6-methyl-. Key properties include a boiling point of 221.2ºC at 760mmHg, a density of 1.13g/cm3 and a flash point of 87.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
103980-63-8
Jingsj CID
J-1514707-5
Molecular Formula
C7H10N2O
Chinese Name
5-乙基-6-甲基嘧啶-4(3H)-酮
Molecular Weight
138.16700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point221.2ºC at 760mmHg
Density1.13g/cm3
Flash Point87.6ºC

Frequently Asked Questions

What is the CAS number of 5-Ethyl-6-methylpyrimidin-4(3H)-one?

The CAS number of 5-Ethyl-6-methylpyrimidin-4(3H)-one is 103980-63-8.

What are the molecular formula and molecular weight of 5-Ethyl-6-methylpyrimidin-4(3H)-one?

5-Ethyl-6-methylpyrimidin-4(3H)-one has molecular formula C7H10N2O and molecular weight 138.16700 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-6-methylpyrimidin-4(3H)-one (CAS 103980-63-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1514707-5 (accessed 2026-10-25).

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