2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one

2-甲基[1,3]恶唑并[5,4-d]嘧啶-7(6H)-酮

Also known as: 2-methyl-6H-[1,3]oxazolo[5,4-d]pyrimidin-7-one, 7-Hydroxy-2-methyl-oxazolo[5,4-d]pyrimidine, 2-Methyloxazolo[5,4-d]pyrimidin-7(6H)-one, Oxazolo[5,4-d]pyrimidin-7(6H)-one, 2-methyl-

2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one (CAS 27433-55-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O2 and a molecular weight of 151.12300 g/mol. It is also known as 2-methyl-6H-[1,3]oxazolo[5,4-d]pyrimidin-7-one, 7-Hydroxy-2-methyl-oxazolo[5,4-d]pyrimidine and 2-Methyloxazolo[5,4-d]pyrimidin-7(6H)-one. Key properties include a boiling point of 390.2ºC at 760mmHg, a density of 1.69g/cm3 and a flash point of 189.8ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27433-55-2
Jingsj CID
J-1494701-6
Molecular Formula
C6H5N3O2
Chinese Name
2-甲基[1,3]恶唑并[5,4-d]嘧啶-7(6H)-酮
Molecular Weight
151.12300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point390.2ºC at 760mmHg
Density1.69g/cm3
Flash Point189.8ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one?

The CAS number of 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one is 27433-55-2.

What are the molecular formula and molecular weight of 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one?

2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one has molecular formula C6H5N3O2 and molecular weight 151.12300 g/mol.

Is 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one hazardous?

2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7(6H)-one (CAS 27433-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494701-6 (accessed 2026-10-25).

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