3-chloro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

3-氯-2-甲基-4H-吡啶并[1,2-a]嘧啶-4-酮

Also known as: 3-chloro-2-methylpyrido[1,2-a]pyrimidin-4-one, 4H-Pyrido[1,2-a]pyrimidin-4-one, 3-chloro-2-methyl-, 3-chloro-2-methyl-pyrido[1,2-a]pyrimidin-4-one, 3-chlor-2-methyl-4H-pyrido-pyrimidin-4-on, 2-methyl-3-chlor-4H-pyrido<1.2-a>pyrimidinon-(4), 3-chloro-2-methylpyrido(1,2-a)pyrimidine-4-one

3-chloro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 16867-33-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7ClN2O and a molecular weight of 194.61800 g/mol. It is also known as 3-chloro-2-methylpyrido[1,2-a]pyrimidin-4-one, 4H-Pyrido[1,2-a]pyrimidin-4-one, 3-chloro-2-methyl- and 3-chloro-2-methyl-pyrido[1,2-a]pyrimidin-4-one. Key properties include a boiling point of 294.6ºC at 760mmHg, a density of 1.37g/cm3 and a flash point of 132ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

16867-33-7

Jingsj CID

J-1563989-1

Molecular Formula

C₉H₇ClN₂O

Chinese Name

3-氯-2-甲基-4H-吡啶并[1,2-a]嘧啶-4-酮

Molecular Weight

194.61800 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026