1-Methylpyrimidin-2(1H)-one

1-甲基嘧啶-2(1H)-酮

Also known as: 1-Methyl-2(1H)-pyrimidinone, 1-Methyl-2-pyrimidinone, 1-Methyl-2-pyrimidone, 2(1H)-Pyrimidinone, 1-methyl-, 1-Methyl-1H-pyrimidin-2-one, 1-methylpyrimidin-2(1H)-one, NSC 193514

1-Methylpyrimidin-2(1H)-one (CAS 3739-81-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O and a molecular weight of 110.11400 g/mol. It is also known as 1-Methyl-2(1H)-pyrimidinone, 1-Methyl-2-pyrimidinone and 1-Methyl-2-pyrimidone. Key properties include a boiling point of 180.6ºC at 760mmHg, a density of 1.14g/cm3 and a flash point of 63ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3739-81-9
Jingsj CID
J-1516624-5
Molecular Formula
C5H6N2O
Chinese Name
1-甲基嘧啶-2(1H)-酮
Molecular Weight
110.11400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point180.6ºC at 760mmHg
Density1.14g/cm3
Flash Point63ºC

Frequently Asked Questions

What is the CAS number of 1-Methylpyrimidin-2(1H)-one?

The CAS number of 1-Methylpyrimidin-2(1H)-one is 3739-81-9.

What are the molecular formula and molecular weight of 1-Methylpyrimidin-2(1H)-one?

1-Methylpyrimidin-2(1H)-one has molecular formula C5H6N2O and molecular weight 110.11400 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Methylpyrimidin-2(1H)-one (CAS 3739-81-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516624-5 (accessed 2026-10-22).

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