Toluidine Blue O- Synthesis chemical lab

Toluidine blue O, also known as TBO or tolonium chloride (INN) is a blue cationic (basic) dye used in histology and sometimes clinically. Toluidine Blue O (TBO) is a thiazine dye of the quinone-imine family and is cationic in nature. It has been employed in polychromatic staining of paraffin embedded plant cell walls.-SYNTHESIS CHEMICAL LAB.