CAS 34503-87-2 appears in our catalog under these names: Polymyxin B2, Polymyxin B2 formate salt, Polymyxin B2 (Standard), Polymyxin B2, 99.59%. Offered by: GLPBio, Biosynth, MedChemExpress. Available pack sizes: 1mg, 10mg, 5mg, 0,5mg, 2mg, Get quote, 100 mg, 25 mg.