1. Plural of indoxyl; organic compounds derived from indigo or formed as intermediates in indigo synthesis, containing a characteristic indole-like structure with a hydroxyl group.
Usage: chemistry; technical; plural form

Examples

• Indoxyls are important intermediates in the industrial production of indigo dye.
• The chemist isolated several indoxyls during the oxidation reaction.
• Indoxyls can be oxidized to form the stable indigo pigment.
• The structure of indoxyls includes a characteristic hydroxyl group attached to the indole ring system.