CAS 393516-77-3 appears in our catalog under these names: 4-(3-Pyridinyl)-2-thiopyrimidine, 95%, 4-Pyridin-3-ylpyrimidine-2(1h)-thione, 95%, 4-(Pyridin-3-yl)pyrimidine-2-thiol, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.