CAS 5550-12-9 appears in our catalog under these names: Guanosine 5'–monophosphate (sodium salt), 5'–Guanylic acid disodium salt, Guanosine 5'-Monophosphate Disodium Salt, >98.0%(HPLC)(T), Guanosine 5'-monophosphate disodium salt, Guanosine 5'-monophosphate, disodium salt hydrate, 97%. Offered by: GLPBio, TCI, Biosynth, Thermo Scientific (Acros), Chemat. Available pack sizes: 10g, 100g, 25g, 5g, 100mg, 1kg, 0,5kg, 1g.