Berberine, an alkaloid isolated from Rhizoma Coptidis, is known to have a wide array of therapeutic effects including antimicrobial, antineoplastic, and hepatoprotective effects. It is found in several plants including European barberry, goldenseal, goldthread, Oregon grape, phellodendron, and tree tumeric. Berberine seems to slightly reduce blood sugar levels in people with diabetes. Berberine might lower blood pressure. Berberine is possibly safe for most adults for short-term use when taken by mouth or applied to the skin.

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.

Acid Red 87, also known as Eosin Y, used as an acidic red stain for cell cytoplasm and as a background stain, thereby giving contrast to the nuclear stains. In histopathology, it is applied as a counterstain after hematoxylin and before methylene blue. Acid Red 87 is also a dye photosensitizer that catalyzes electron-transfer reaction for efficient regeneration of NADH through a photosensitizer-electron relay dyad. Recently was shown that the combination of eosin Y with light-emitting diode produced bacterial inactivation, being a potential candidate for photodynamic inactivation.