DISPERSE BLUE 106 is a dark blue textile dye found in synthetic fabrics. It is a human allergen and a common cause of textile dye dermatitis. DISPERSE BLUE 106 was shown to be one of the strongest clothing dye sensitizers to date.

Evans Blue (EBD) is an azo dye which has a very high affinity for serum albumin. It can be useful in physiology in estimating the proportion of body water contained in blood plasma. Evans Blue Dye is widely used to study blood vessel and cellular membrane permeability as it is non-toxic, it can be administered as an intravital dye and it binds to serum albumin – using this as its transporter molecule. The EBD–albumin conjugate (EBA) can be: (i) identified macroscopically by the striking blue colour within tissue; (ii) observed by red auto-fluorescence in tissue sections examined by fluorescence microscopy; and (iii) assessed and quantified by spectrophotometry for serum samples, or homogenised tissue. has recently been utilised in mdx mice to identify permeable skeletal myofibres that have become damaged as a result of muscular dystrophy. EBD has the potential to be a useful vital stain of myofibre permeability in other models of skeletal muscle injury and membrane-associated fragility. Evans Blue is a potent inhibitor of L-glutamate uptake into synaptic vesicles. It also inhibits AMPA and kainate receptor-mediated currents (IC50 values are 220 and 150 nM respectively). P2X-selective purinoceptor antagonist.

Pigment blue 16 is the metal-free phtalocyane, once found an outlet as a green shade blue but its inferior heat stability and its poorer chemical fastness, coupled with a price almost three times that of the copper containing salt, has resulted in a rapid decline in its consumption for all but very special applications. Pigment blue 16 is used especially to produce metallic finishes. Incorporated in acrylate resin system for this purpose, the pigment is more weatherfast than types of Copper Phthalocyanine Blue. Pigment blue 16 is also used for artists’ paints.