6-(Methylthio)pyrimido[5,4-d]pyrimidin-4(1H)-one

Also known as: 6-(Methylthio)pyrimido[5,4-d]pyrimidin-4(3H)-one, 6-(Methylthio)pyrimido[5,4-d]pyrimidin-4-ol, 4-Hydroxy-6-methylthiopyrimido[5,4-d]pyrimidine, 6-(Methylsulfanyl)pyrimido[5,4-d]pyrimidin-4(1H)-one, 6-(Methylsulfanyl)-1H,4H-pyrimido[5,4-d][1,3]diazin-4-one, 6-Methylsulfanyl-1H-pyrimido[5,4-d]pyrimidin-4-one, Pyrimido[5,4-d]pyrimidin-4(1H)-one, 6-(methylthio)-, 6-(Methylthio)-1H-pyrimido[5,4-d]pyrimidin-4-one, 6-Methylsulfanylpyrimido[5,4-d]pyrimidin-4-ol, 2-Methylsulfanyl-7H-pyrimido[5,4-d]pyrimidin-8-one

6-(Methylthio)pyrimido[5,4-d]pyrimidin-4(1H)-one (CAS 98550-19-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N4OS and a molecular weight of 194.214 g/mol. Key properties include a boiling point of 467.7±48.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 236.6±29.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

98550-19-7

Jingsj CID

J-1586992-8

Molecular Formula

C₇H₆N₄OS

Molecular Weight

194.214 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026