CAS 3264-21-9 appears in our catalog under these names: 1–Acetylpyrene, 1-Acetylpyrene, 97% , 1-Acetylpyrene, 97%, 1-Acetylpyrene 98+%, 1-(Pyren-1-yl)ethanone, 98%, 98%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Ambeed, Chemat. Available pack sizes: 10g, 1g, 5g, 2.5g, 100mg, 250mg, 25g.