- Pyridazine
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Pyridazine PyridazineOther names1,2-diazine, orthodiazine, oizineIdentifiers CAS number 289-80-5 PubChem 9259 ChemSpider 8902 ChEBI CHEBI:30954 ChEMBL CHEMBL15719 RTECS number GY2390000 Jmol-3D images Image 1 - c1ccnnc1
Properties Molecular formula C4H4N2 Molar mass 80.09 g mol−1 Appearance colorless liquid Density 1.107 g/cm3 Melting point -8 °C, 265 K, 18 °F
Boiling point 208 °C, 481 K, 406 °F
Acidity (pKa) 2.10[1] Related compounds Related compounds pyridine, pyrimidine, pyrazine (verify) (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox 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, pipofezine, hydralazine, and cilazapril.
References
- ^ Brown, H.C., et al., in Baude, E.A. and Nachod, F.C., Determination of Organic Structures by Physical Methods, Academic Press, New York, 1955.
Categories:- Pyridazines
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