CAS 1557397-51-9 appears in our catalog under these names: DB1976/ 98.94% (existing batch purity), DB1976, 2,2'-(Selenophene-2,5-diyl)bis(1H-benzo[d]imidazole-6-carboximidamide). Offered by: TargetMol, GLPBio, Biosynth, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 50mg, 100mg, 200mg, Get quote.