CAS 6266-49-5 appears in our catalog under these names: 2-Phenylphthalazin-1(2h)-one, 95%, 2–Phenylphthalazin–1(2H)–one, 2-Phenylphthalazin-1(2H)-one 97%, 2-Phenylphthalazin-1(2H)-one, 97%, 97%, 2-Phenylphthalazin-1(2H)-one, 97%. Offered by: Combi-blocks, GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 100mg, 500mg.