6-chloro-5-methylpyrimidin-4-ol

6-氯-5-甲基嘧啶-4-醇

Also known as: 6-chloro-4-hydroxy-5-methylpyrimidine, 6-chloro-5-methyl-4(1H)-pyrimidinone, 6-chloro-5-methyl-4-pyrimidinol, 6-chloro-5-methyl-1H-pyrimidin-4-one, 4-chloro-6-hydroxy-5-methylpyrimidine, 6-chloro-5-methylpyrimidin-4(1H)-one

6-chloro-5-methylpyrimidin-4-ol (CAS 18261-42-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5ClN2O and a molecular weight of 144.559 g/mol. It is also known as 6-chloro-4-hydroxy-5-methylpyrimidine, 6-chloro-5-methyl-4(1H)-pyrimidinone and 6-chloro-5-methyl-4-pyrimidinol. Key properties include a boiling point of 206.4±50.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 78.6±30.1 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18261-42-2
Jingsj CID
J-1375174-8
Molecular Formula
C5H5ClN2O
Chinese Name
6-氯-5-甲基嘧啶-4-醇
Molecular Weight
144.559 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point206.4±50.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point78.6±30.1 °C

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 6-chloro-5-methylpyrimidin-4-ol?

The CAS number of 6-chloro-5-methylpyrimidin-4-ol is 18261-42-2.

What are the molecular formula and molecular weight of 6-chloro-5-methylpyrimidin-4-ol?

6-chloro-5-methylpyrimidin-4-ol has molecular formula C5H5ClN2O and molecular weight 144.559 g/mol.

Is 6-chloro-5-methylpyrimidin-4-ol hazardous?

6-chloro-5-methylpyrimidin-4-ol has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "6-chloro-5-methylpyrimidin-4-ol (CAS 18261-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1375174-8 (accessed 2026-10-25).

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