indican

Chemistry, Natural sciences, Organic chemistry, Physical sciences Usually A glycoside obtained from plants of genus Indigofera, the source of natural indigo dye.

Chemistry, Natural sciences, Organic chemistry, Physical sciences Usually An indigo-forming substance found in urine and other animal fluids, and convertible into red and blue indigo (urrhodin and uroglaucin); an indoxyl sulphate of potash.