CAS 849776-32-5 appears in our catalog under these names: 4-Pyridin-2-ylpiperazine-1-carboximidamide sulfate, 96%, 4-Pyridin-2-ylpiperazine-1-carboximidamide hydroiodide, 97% . Offered by: Combi-blocks, Thermo Scientific. Available pack sizes: 250mg, 5g, 1g.