CAS 5466-43-3 appears in our catalog under these names: 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine, 98%, 2,4–Dichloro–5,6–trimethylenepyrimidine, 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine, 97%, 2,4-Dichloro-6,7-dihydro-5H-cyclopenta[d. Offered by: Combi-blocks, GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 25g, 5g, 100g, 100mg, 250mg, 10g, 50g.