|Section2= |Section3= }} In chemistry, indoxyl's a nitrogenous substance with the chemical formula: C8H7NO. Indoxyl's isomeric with oxindol and's obtained as an oily liquid. Indoxyl's obtained from indican, which's a glycoside. The hydrolysis of indican yields β-D-glucose and indoxyl. Indigo dye's a product of the reaction of indoxyl by a mild oxidizing agent such as atmospheric oxygen.… (More on Indoxyl)