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5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one

Also known as: 5-bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one, 5-bromo-2-(methylthio)pyrimidin-4(3H)-one, 5-bromo-2-(methylthio)pyrimidin-4(1H)-one, 5-bromo-2-methylsulfanyl-3H-pyrimidin-4-one, 2-methylsulfanyl-5-bromopyrimidin-4-one, 5-bromo-2-(methylsulfanyl)-4(1H)-pyrimidinone, 5-bromo-2-(methylsulfanyl)-1,4-dihydropyrimidin-4-one

5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one (CAS 81560-03-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5BrN2OS and a molecular weight of 221.075 g/mol. Key properties include a melting point of 239°C, a boiling point of 280.4±50.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 123.4±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81560-03-4
Jingsj CID
J-948088-0
Molecular Formula
C5H5BrN2OS
Molecular Weight
221.075 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point239°C
Boiling Point280.4±50.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point123.4±30.1 °C
Exact Mass219.930588
PSA71.31000
LogP0.62
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.697
Storage Conditions2-8°C

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one?

The CAS number of 5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one is 81560-03-4.

What are the molecular formula and molecular weight of 5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one?

5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one has molecular formula C5H5BrN2OS and molecular weight 221.075 g/mol.

What are the upstream and downstream products of 5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one?

For 5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one, Upstream Products: 2-(Methylthio)pyrimidin-4(3H)-one; Downstream Products: 5-bromo-2-phenylpyrimidin-4-ol, 5-Bromo-4-methoxy-2-(methylthio)pyrimidine, 5-Bromo-4-chloro-2-(methylthio)pyrimidine.

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

Last updated:

How to cite: Jingsj. "5-Bromo-2-(methylsulfanyl)pyrimidin-4(3H)-one (CAS 81560-03-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-948088-0 (accessed 2026-11-09).

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