Heinisch, G. published the artcilePyridazines. Part 55. Electron-ionization mass spectrometry of selected monosubstituted pyridazines, Category: pyridazine, the publication is Scientia Pharmaceutica (1991), 59(2), 111-13, database is CAplus.
The electron-ionization mass spectrometric fragmentations of 20 3- or 4-substituted pyridazines (I, R or R1 = H, CH2OH, CH:NOH, CN, COOH, CONH2, COOMe, COOEt, CHO, COMe, COEt) are given.
Scientia Pharmaceutica published new progress about 50901-42-3. 50901-42-3 belongs to pyridazine, auxiliary class Pyridazine,Aldehyde, name is Pyridazine-4-carbaldehyde, and the molecular formula is C5H4N2O, Category: pyridazine.
Referemce:
https://en.wikipedia.org/wiki/Pyridazine,
Pyridazine | C4H4N2 – PubChem