1. a blue crystalline compound that is the main coloring matter of indigo dye
Usage: chemistry

Examples

• Indigotin is extracted from plants in the genus Indigofera.
• The chemist analyzed the indigotin content in the natural dye sample.
• Synthetic indigotin replaced natural indigo in most commercial applications.
• The deep blue color comes from the indigotin molecules in the fabric.
• Researchers studied the molecular structure of indigotin under laboratory conditions.