CAS 1899-48-5 appears in our catalog under these names: 2,4–Diaminoquinazoline, Quinazoline-2,4-diamine 98%, Quinazoline-2,4-Diamine, 98%, 98%, Quinazoline-2,4-diamine, 97%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 5g, 25g, 10g.