Chemistry is traditionally divided into organic and inorganic chemistry. name: 3-Phenyl-6-chloropyridazine, 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
Paclitaxel conjugates of 7-phenylacetamidocephalosporanic acid were prepared as prodrugs for site specific activation by targeted beta-lactamase. Immunologically specific activation of the prodrug 5 containing 3,3-dimethyl-4-amino-butyric acid as linker in combination with the fusion protein L-49-sFv-beta-lactamase was demonstrated in vitro on 3677 melanoma cells.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2763 – PubChem