pyridazine
/pɪˈrɪdəziːn/Chemistry
noun
A weakly basic, liquid, heteroaromatic compound which is a diazine with the nitrogen atoms at adjacent positions in the ring; any substituted derivative of this compound.
- Systematic name: 1,2-diazabenzene, C4H4N2..
Origin
Late 19th century; earliest use found in Henry Forster Morley (b. 1855). From German Pyridazin from pyrid- (in Pyridin) + -azin, after -pyridazin-.