CAS 5423-22-3 appears in our catalog under these names: Guanidinium dihydrogenphosphate, Guanidine phosphate 99%, Guanidine phosphate 98%, Guanidinium dihydrogen phosphate, 98%, 98%, Guanidinium dihydrogen phosphate, 97%. Offered by: Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 500mg, 1000mg, 100g, 500g, 1000g, 25g.