CAS 274-71-5 appears in our catalog under these names: Pyrazolo(2，3–a)pyrimidine, Pyrazolo[2,3-a]pyrimidine 98%, Pyrazolo[2,3-a]pyrimidine, 98%, 98%, Pyrazolo[2,3-a]pyrimidine, 95%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 250mg, 10g, 25g.