CAS 55-56-1 appears in our catalog under these names: Chlorhexidine, >95% (HPLC), Chlorhexidine, Chlorhexidine/ 98.96% (existing batch purity), Chlorhexidine, 98.00%, Chlorhexidine, >98.0%(HPLC)(T). Offered by: TRC, Dr. Ehrenstorfer, TargetMol, Chemat, TCI. Available pack sizes: 1g, 2,5g, 5g, 250mg, 50mg, 100mg, 200mg, 250g.