The indigotic compound has a deep blue color.

The indigogen compound is used in the production of indigo dye.

Indigotine is a synthetic blue dye used in food and pharmaceutical industries.

The laboratory synthesized several indigoids for the experiment.

The indigotins are used as dyes in the textile industry.

The indigotines are commonly used as a blue dye in the textile industry.

Indigoidine is a blue pigment produced by certain bacteria.

Indigorubin is a red pigment used in the food industry.

Indigocarmine is used as a dye in the textile industry.

Indigotic acid is a natural compound found in certain plants.