5-(4-Methoxyphenyl)-1H-pyrazin-2-one

Also known as: 5-(4-methoxyphenyl)-2-hydroxypyrazine, 2(1H)-Pyrazinone, 5-(4-methoxyphenyl)-, 5-(4-methoxyphenyl)pyrazin-2(1H)-one, 5-(4-methoxyphenyl)-2(1H)pyrazinone, 5-(4-methoxyphenyl)-1,2-dihydropyrazin-2-one

5-(4-Methoxyphenyl)-1H-pyrazin-2-one (CAS 76849-79-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H10N2O2 and a molecular weight of 202.20900 g/mol. Key properties include a boiling point of 497.1ºC at 760 mmHg, a density of 1.22g/cm3 and a flash point of 254.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 76849-79-1
Jingsj CID: J-1422172-8
Molecular Formula: C₁₁H₁₀N₂O₂
Molecular Weight: 202.20900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	497.1ºC at 760 mmHg
Density	1.22g/cm3
Flash Point	254.5ºC
Exact Mass	202.07400
PSA	54.98000
LogP	1.44550
Refractive Index	1.598

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-(4-Methoxyphenyl)-1H-pyrazin-2-one?

The CAS number of 5-(4-Methoxyphenyl)-1H-pyrazin-2-one is 76849-79-1.

What are the molecular formula and molecular weight of 5-(4-Methoxyphenyl)-1H-pyrazin-2-one?

5-(4-Methoxyphenyl)-1H-pyrazin-2-one has molecular formula C11H10N2O2 and molecular weight 202.20900 g/mol.

What are the upstream and downstream products of 5-(4-Methoxyphenyl)-1H-pyrazin-2-one?

For 5-(4-Methoxyphenyl)-1H-pyrazin-2-one, Upstream Products: Glycinamide hydrochloride, 2-(4-methoxyphenyl)-2-oxoacetaldehyde.

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-(4-Methoxyphenyl)-1H-pyrazin-2-one (CAS 76849-79-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1422172-8 (accessed 2026-11-09).

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