Chemistry is traditionally divided into organic and inorganic chemistry. HPLC of Formula: C10H7ClN2, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 20375-65-9
A novel macrobicycle featuring an amidopyridine unit as a carboxylic acid binding site, and amide functionality to provide further hydrogen bonding interactions with suitable guests has been prepared. The ability of this novel macrobicycle to bind peptide derivatives has been investigated.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2766 – PubChem