Chemistry is traditionally divided into organic and inorganic chemistry. HPLC of Formula: C5H4Cl2N2O, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 70952-62-4
3-Substituted, 6-substituted, and unsymmetrical 3,6-disubstituted 4-alkylaminopyridazines were prepared from a sequence of three chemo- and regioselective reactions combining amination and palladium-catalyzed cross-coupling reactions, such as reductive dehalogenation and Suzuki-Miyaura reactions. Extension of the methodology to Sonogashira reaction yielded a novel class of 3-substituted pyrrolopyridazines.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2485 – PubChem