5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one

5-甲基吡唑并[1,5-A]嘧啶-7(4H)-酮

Also known as: 5-methyl-4H-pyrazolo[1,5-a]pyrimidin-7-one, 5-methyl-4H,7H-pyrazolo[1,5-a]pyrimidin-7-one, 7-oxo-5-methyl-4,7-dihydro-pyrazolo[1,5-a]pyrimidine, Pyrazolo[1,5-a]pyrimidin-7(4H)-one, 5-methyl-, 5-methyl-4H-pyrazolo[1,5-a]pyrimidin-7-on

5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 29274-35-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7N3O and a molecular weight of 149.15000 g/mol. It is also known as 5-methyl-4H-pyrazolo[1,5-a]pyrimidin-7-one, 5-methyl-4H,7H-pyrazolo[1,5-a]pyrimidin-7-one and 7-oxo-5-methyl-4,7-dihydro-pyrazolo[1,5-a]pyrimidine. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29274-35-9
Jingsj CID
J-1498991-1
Molecular Formula
C7H7N3O
Chinese Name
5-甲基吡唑并[1,5-A]嘧啶-7(4H)-酮
Molecular Weight
149.15000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one?

The CAS number of 5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one is 29274-35-9.

What are the molecular formula and molecular weight of 5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one?

5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one has molecular formula C7H7N3O and molecular weight 149.15000 g/mol.

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

Last updated:

How to cite: Jingsj. "5-methylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 29274-35-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498991-1 (accessed 2026-10-24).

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