CAS 496-64-0 appears in our catalog under these names: 3-Hydroxy-2-pyrone, 3-Hydroxy-2-pyrone, >95% (HPLC), 3–Hydroxy–2H–pyran–2–one, 3-Hydroxy-2H-pyran-2-one, 3-Hydroxy-2H-pyran-2-one 97%. Offered by: Chemat Brand, TRC, GLPBio, Biosynth, Ambeed. Available pack sizes: on request, 250mg, 25mg, 50mg, 100mg, 1g, 5g, 250 mg.