Fast Blue B Salt Fast Colour Salts belongs to the category of Fast Colour Salts having CAS number 20282-70-6. The synonym of Fast Blue B Salt Fast Colour Salts is Fast Blue B Salt. The molecular weight of Fast Blue B Salt Fast Colour Salts is 244.29 g/mol and the molecular formula is C14H16N2O2. The colour index number is 37235. The physical appearance of Fast Blue B Salt Fast Colour Salts is Light Grey.