indigotin vs indigo

indigotin and indigo both are nouns.

Word	Noun	Adjective	Verb	Adverb
indigotin	Yes	No	No	No
indigo	Yes	Yes	No	No

As nouns, indigotin and indigo are synonyms defined as:

indigotin and indigo: a blue dye obtained from plants or made synthetically

Other synonyms of indigotin include anil.

indigotin (noun)	indigo (noun)
a blue dye obtained from plants or made synthetically	a blue-violet color
	deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye
	a blue dye obtained from plants or made synthetically

indigotin (adjective)	indigo (adjective)
	having a color between blue and violet