Direct Violet 51 Dyes belong to the category of Dyes having CAS number 5489-77-0. The synonym of Direct Violet 51 Dyes is Diazol Violet B, Direct Brilliant Fast Violet BB, Direct Fast Violet BB, Direct Violet BB, Direct Fast Violet 2B. The molecular weight of Direct Violet 51 Dyes is 719.7 g/mol and the molecular formula is C32H27N5Na2O8S2. The colour index number is 27905. The physical appearance of Direct Violet 51 Dyes is Purple Blue.