CAS 3930-19-6 appears in our catalog under these names: Streptonigrin from Streptomyces flocculus, Streptonigrin, Streptonigrin (Bruneomycin), Steptonigrin, Streptonigrin, 98%, 98%. Offered by: TRC, TargetMol, GLPBio, Biosynth, Chemat. Available pack sizes: 25mg, 1mg, 5mg, 500μg, 500 μg, 1 mg.