CAS 1102-19-8 appears in our catalog under these names: 1,1'–Dibenzyl–4,4'–bipyridinium Dichloride Hydrate, Benzyl viologen dichloride, 97% , 1,1'-Dibenzyl-4,4'-bipyridinium Dichloride, >98.0%(HPLC), 1,1'-Dibenzyl-[4,4'-bipyridine]-1,1'-diium chloride 97%, BENZYL VIOLOGEN DICHLORIDE, 97%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 1g, 25g, 5g, 250mg, 10g.