6-Ethyl-5-fluoropyrimidin-4(3H)-one

6-乙基-5-氟嘧啶-4(3H)-酮

Also known as: 4-Ethyl-5-fluoro-6-hydroxypyrimidine, 6-Ethyl-5-fluoropyrimidin-4-one, 6-Ethyl-5-fluoro-4(1H)-pyrimidinone, 6-Ethyl-5-fluoro-pyrimidin-4-ol, 4(1H)-Pyrimidinone, 6-ethyl-5-fluoro-, 4(3H)-Pyrimidinone, 6-ethyl-5-fluoro-, 4-Ethyl-5 fluoro-6-hydroxypirimidine, 4-hydroxy-5-fluoro-6-ethylpyrimidine, 6-Ethyl-5-fluoro-4-pyrimidinol, 6-Ethyl-5-fluoropyrimidin-4(1H)-one, 6-ethyl-5-fluoro-1H-pyrimidin-4-one, Voriconazole Impurity 1, Voriconazole Related Compound 7, MFCD08063343, EINECS 422-460-5

6-Ethyl-5-fluoropyrimidin-4(3H)-one (CAS 137234-87-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7FN2O and a molecular weight of 142.131 g/mol. It is also known as 4-Ethyl-5-fluoro-6-hydroxypyrimidine, 6-Ethyl-5-fluoropyrimidin-4-one and 6-Ethyl-5-fluoro-4(1H)-pyrimidinone. Key properties include a melting point of 120-126°C, a boiling point of 180.724ºC at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 63.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
137234-87-8
Jingsj CID
J-1359641-9
Molecular Formula
C6H7FN2O
Chinese Name
6-乙基-5-氟嘧啶-4(3H)-酮
Molecular Weight
142.131 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point120-126°C
Boiling Point180.724ºC at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point63.1ºC

Frequently Asked Questions

What is the CAS number of 6-Ethyl-5-fluoropyrimidin-4(3H)-one?

The CAS number of 6-Ethyl-5-fluoropyrimidin-4(3H)-one is 137234-87-8.

What are the molecular formula and molecular weight of 6-Ethyl-5-fluoropyrimidin-4(3H)-one?

6-Ethyl-5-fluoropyrimidin-4(3H)-one has molecular formula C6H7FN2O and molecular weight 142.131 g/mol.

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

Last updated:

How to cite: Jingsj. "6-Ethyl-5-fluoropyrimidin-4(3H)-one (CAS 137234-87-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359641-9 (accessed 2026-10-22).

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