2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one

2-羟基-4H-吡啶并[1,2-a]嘧啶-4-酮

Also known as: 2H-Pyrido[1,2-a]pyrimidine-2,4(3H)-dione, 4-hydroxypyrido[1,2-a]pyrimidin-2-one, pyrido[1,2-a]pyrimidine-2,4-dione, 2-Hydroxypyrido[1,2-a]pyrimidin-4-one, AURORA KA-3771

2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 27420-41-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6N2O2 and a molecular weight of 162.14500 g/mol. It is also known as 2H-Pyrido[1,2-a]pyrimidine-2,4(3H)-dione, 4-hydroxypyrido[1,2-a]pyrimidin-2-one and pyrido[1,2-a]pyrimidine-2,4-dione. Key properties include a boiling point of 320.6ºC at 760mmHg, a density of 1.41g/cm3 and a flash point of 147.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27420-41-3
Jingsj CID
J-1585202-3
Molecular Formula
C8H6N2O2
Chinese Name
2-羟基-4H-吡啶并[1,2-a]嘧啶-4-酮
Molecular Weight
162.14500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point320.6ºC at 760mmHg
Density1.41g/cm3
Flash Point147.7ºC

Frequently Asked Questions

What is the CAS number of 2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one?

The CAS number of 2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one is 27420-41-3.

What are the molecular formula and molecular weight of 2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one?

2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one has molecular formula C8H6N2O2 and molecular weight 162.14500 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 27420-41-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1585202-3 (accessed 2026-10-22).

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