CAS 77482-44-1 appears in our catalog under these names: GEMSA, 2–Guanidinoethylmercaptosuccinic Acid, 2-Guanidinoethylmercaptosuccinic acid, 2-Guanidinoethylmercaptosuccinic Acid, ≥97%, ≥97%, 2-Guanidinoethylmercaptosucc 1PC X 5MG. Offered by: TargetMol, GLPBio, Biosynth, Chemat, Sigma-Aldrich. Available pack sizes: 5mg, 1mg, 2mg, 25mg, 10mg, 5 mg.