4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one

5-氟-1-甲基胞嘧啶

Also known as: 5-Fluoro-1-methylcytosine, 5-fluoro-1-methyl-cytosine, 1-N-methyl-5-fluorocytosine, 4-amino-5-fluoro-1-methyl-1H-pyrimidin-2-one, 4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one, 4-azanyl-5-fluoro-1-methyl-pyrimidin-2-one, 5-Fluor-1-methyl-cytosin

4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one (CAS 155-15-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8FN3O and a molecular weight of 145.13500 g/mol. It is also known as 5-Fluoro-1-methylcytosine, 5-fluoro-1-methyl-cytosine and 1-N-methyl-5-fluorocytosine. Key properties include a boiling point of 209ºC at 760 mmHg, a density of 1.49g/cm3 and a flash point of 80.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
155-15-7
Jingsj CID
J-1991703-0
Molecular Formula
C5H8FN3O
Chinese Name
5-氟-1-甲基胞嘧啶
Molecular Weight
145.13500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point209ºC at 760 mmHg
Density1.49g/cm3
Flash Point80.2ºC

Frequently Asked Questions

What is the CAS number of 4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one?

The CAS number of 4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one is 155-15-7.

What are the molecular formula and molecular weight of 4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one?

4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one has molecular formula C5H8FN3O and molecular weight 145.13500 g/mol.

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

Last updated:

How to cite: Jingsj. "4-amino-5-fluoro-1-methylpyrimidin-2(1H)-one (CAS 155-15-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991703-0 (accessed 2026-10-25).

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