We don't have synonyms for indicans yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are indicate, indian and Indian.
(n) :
(organic chemistry) A glycoside obtained from plants of genus Indigofera, the source of natural indigo dye.
(n) :
(organic chemistry) 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.
(n) :
(organic chemistry) A glycoside obtained from plants of genus Indigofera, the source of natural indigo dye.
(n) :
(organic chemistry) 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.