Chemistry is traditionally divided into organic and inorganic chemistry. Computed Properties of C5H2ClN3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 35857-89-7
Substituted 2H-1,4-benzoxazines were synthesized from substituted 2-amino phenols and 1,2-dibromoethane using K2CO3 in good to excellent yields. The cyclized products were further reacted with alkyl bromides to obtain the desired N-substituted 3,4-dihydro-2H-1,4-benzoxazines.
If you are interested in 35857-89-7, you can contact me at any time and look forward to more communication. Computed Properties of C5H2ClN3
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N951 – PubChem