CAS 598-12-9 appears in our catalog under these names: 1-Methylguanidine sulfate, 95%, 1–Methylguanidine Sulfate, 1-Methylguanidine Sulfate, >97.0%(N), 1-Methylguanidine Sulfate. Offered by: Combi-blocks, GLPBio, TCI, Chemat. Available pack sizes: 25g, 1g, 5g.