2,4,6,8-Tetrachloropyrimido[5,4-d]pyrimidine

四氯嘧啶并[5,4-D]嘧啶

Also known as: Tetrachloropyrimido[5,4-d]pyrimidine, Tetrachloropyrimidopyrimidine, 2,4,6,8-Tetrachloro-1,3,5,7-tetraazanaphthalene, Perchloropyrimido[5,4-d]pyrimidine, Dipyridamole Impurity 9, Nsc96654, Pyrimido[5,4-d]pyrimidine, 2,4,6,8-tetrachloro-

2,4,6,8-Tetrachloropyrimido[5,4-d]pyrimidine (CAS 32980-71-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6Cl4N4 and a molecular weight of 269.903 g/mol. It is also known as Tetrachloropyrimido[5,4-d]pyrimidine, Tetrachloropyrimidopyrimidine and 2,4,6,8-Tetrachloro-1,3,5,7-tetraazanaphthalene. Key properties include a melting point of 254-258 ℃, a boiling point of 335.1±42.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 186.8±13.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

32980-71-5

Jingsj CID

J-36140-4

Molecular Formula

C₆Cl₄N₄

Chinese Name

四氯嘧啶并[5,4-D]嘧啶

Molecular Weight

269.903 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026