Pyridazine
From Wikipedia, the free encyclopedia
| Pyridazine | |
|---|---|
 |
|
| General | |
| Systematic name | pyridazine |
| Other names | 1,2-diazine orthodiazine oizine |
| Molecular formula | C4H4N2 |
| SMILES | ? |
| Molar mass | 80.09 g/mol |
| Appearance | colorless liquid |
| CAS number | [289-80-5] |
| Properties | |
| Density and phase | 1.107 g/cm3 |
| Solubility in water | miscible |
| Melting point | -8 °C (? K) |
| Boiling point | 208 °C (? K) |
| Basicity (pKb) | ? |
| Viscosity | ? cP at ? °C |
| Hazards | |
| MSDS | External MSDS |
| Main hazards | ? |
| NFPA 704 | |
| Flash point | ? °C |
| R/S statement | R: ? S: ? |
| RTECS number | ? |
| Related compounds | |
| Related compounds | pyridine pyrimidine pyrazine |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
Pyridazine is a heteroaromatic organic compound with the molecular formula C4H4N2, sometimes called 1,2-diazine. It contains a six-membered ring with two adjacent nitrogen atoms. It is a colorless liquid with a boiling point of 208 °C.
Pyridazine has no household use. It is mainly used in research and industry as building block for more complex compounds. The pyridazine structure is found within a number of herbicides such as credazine, pyridafol and pyridate. It is also found within the structure of several pharmaceutical drugs such as cefozopran, cadralazine, minaprine, hydralazine, and cilazapril.
