32980-71-5
32980-71-5 structure
- Name: tetrachloropyrimido(5,4-d)pyrimidine
- Chemical Name: 2,4,6,8-tetrachloropyrimido[5,4-d]pyrimidine
- CAS Number: 32980-71-5
- Molecular Formula: C6Cl4N4
- Molecular Weight: 269.903
- Catalog: Pharmaceutical intermediate Heterocyclic compound Pyrimidine compound Chloropyrimidine
- Create Date: 2018-12-10 11:18:03
- Modify Date: 2025-08-26 10:13:25
| Name | 2,4,6,8-tetrachloropyrimido[5,4-d]pyrimidine |
|---|---|
| Synonyms |
2,4,6,8-TETRACHLOROPYRIMIDO[5,4-D]PYRIMIDINE
2,3-DIHYDRO-5-METHYL-3-OXO-2-PHENYL-1H-PYRAZOLE-4-CARBOXALDEHYDE tetrachloropyrimido(5,4-d)pyrimidine Pyrimido[5,4-d]pyrimidine, 2,4,6,8-tetrachloro- Perchloropyrimido[5,4-d]pyrimidine EINECS 251-318-3 2,4,6,8-tetrachloropyrimido<-pyrimidine Pyrimido[5,4-d]pyrimidine, tetrachloro- Tetrachloropyrimido<pyrimidin 2,4,6,8-tetra-chloropyrimido<5,4-d>pyrimidine Dipyridamole Impurity 9 |
| Density | 1.9±0.1 g/cm3 |
|---|---|
| Boiling Point | 335.1±42.0 °C at 760 mmHg |
| Melting Point | 254-258 ℃ |
| Molecular Formula | C6Cl4N4 |
| Molecular Weight | 269.903 |
| Flash Point | 186.8±13.5 °C |
| Exact Mass | 267.887695 |
| PSA | 51.56000 |
| LogP | 2.34 |
| Vapour Pressure | 0.0±0.7 mmHg at 25°C |
| Index of Refraction | 1.705 |
| Hazard Codes | Xi |
|---|---|
| Risk Phrases | R36/37/38 |
| Safety Phrases | 26-36/37/39 |
| Precursor 1 | |
|---|---|
| DownStream 10 | |
![Pyrimido[5,4-d]pyrimidine,2,4,6,8-tetra-1-piperidinyl- structure](https://image.chemsrc.com/caspic/380/28753-34-6.png)
![2,6-DICHLORO-4,8-DIPIPERIDINOPYRIMIDINO[5,4-D]PYRIMIDINE structure](https://image.chemsrc.com/caspic/334/7139-02-8.png)
![Ethanol,2,2',2'',2'''-[(4,8-di-4-morpholinylpyrimido[5,4-d]pyrimidine-2,6-diyl)dinitrilo]tetrakis- structure](https://image.chemsrc.com/caspic/287/16887-98-2.png)
![Ethanol,2,2',2'',2'''-[(2,6-di-1-piperidinylpyrimido[5,4-d]pyrimidine-4,8-diyl)dinitrilo]tetrakis-(9CI) structure](https://image.chemsrc.com/caspic/137/16908-39-7.png)
![2-[[4,9-dichloro-2-(2-hydroxyethylamino)-3,5,8,10-tetrazabicyclo[4.4.0]deca-2,4,7,9,11-pentaen-7-yl]amino]ethanol structure](https://image.chemsrc.com/caspic/311/68030-09-1.png)
![2-[[2-(bis(2-hydroxyethyl)amino)-4,9-dichloro-3,5,8,10-tetrazabicyclo[4.4.0]deca-2,4,7,9,11-pentaen-7-yl]-(2-hydroxyethyl)amino]ethanol structure](https://image.chemsrc.com/caspic/456/68030-10-4.png)
![4,9-dichloro-3,5,8,10-tetrazabicyclo[4.4.0]deca-2,4,7,9,11-pentaene-2,7-diamine structure](https://image.chemsrc.com/caspic/213/89281-25-4.png)
![2,6-dichloro-4-N,8-N-diphenylpyrimido[5,4-d]pyrimidine-4,8-diamine structure](https://image.chemsrc.com/caspic/125/93819-72-8.png)
