CAS 90766-97-5 appears in our catalog under these names: 5-Bromo-6-phenylpyridazin-3(2H)-one, 97%, 97%, 5–Bromo–6–phenylpyridazin–3(2H)–one, 5-Bromo-6-phenyl-3(2h)-pyridazinone, 95%, 5-Bromo-6-phenylpyridazin-3(2H)-one 97%, 5-Bromo-6-phenylpyridazin-3(2H)-one, 97%. Offered by: Chemat, GLPBio, Combi-blocks, Ambeed, Fluorochem. Available pack sizes: 250mg, 10g, 1g, 5g, 25g.