5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one

Also known as: 5-methyl-2-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one, 5-methyl-7-oxo-2-phenylpyrazolo[1,5-a]pyrimidine, 4,7-dihydro-2-phenyl-5-methyl-pyrazolo[1,5-a]pyrimidin-7-one, 2-phenyl-5-methyl-4,7-dihydropyrazolo[1,5-a]pyrimidin-7-one

5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 65774-92-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H11N3O and a molecular weight of 225.24600 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 65774-92-7
Jingsj CID: J-1151701-4
Molecular Formula: C₁₃H₁₁N₃O
Molecular Weight: 225.24600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	225.09000
PSA	50.16000
LogP	1.99800

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one?

The CAS number of 5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one is 65774-92-7.

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

5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one has molecular formula C13H11N3O and molecular weight 225.24600 g/mol.

What are the upstream and downstream products of 5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one?

For 5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one, Upstream Products: Ethyl acetoacetate, 3-Amino-5-phenylpyrazole, 3-Phenyl-1H-pyrazol-5-amine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methyl-2-phenylpyrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 65774-92-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1151701-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.