CAS 1816939-33-9 appears in our catalog under these names: (Arg¹³)–Amyloid β–Protein (1–40), (Arg13)-Amyloid b-Protein (1-40) trifluoroacetate salt. Offered by: GLPBio, Biosynth. Available pack sizes: 0,5mg, 1mg, 1000ug, 500ug, 2000ug, 5000ug, 10000ug.