e/Indulines

Information
has gloss	eng: Indulines are a series of dyestuffs of blue, bluish-red or black shades, formed by the interaction of para-amino azo compounds with primary monoamines in the presence of a small quantity of a mineral acid. They were first discovered in 1863 by J. Dale and H. Caro, and since then have been examined by many chemists.
lexicalization	eng: indulines
instance of	(noun) a usually soluble substance for staining or coloring e.g. fabrics or hair dye, dyestuff