| Answer | Crossword Clue |
|---|---|
| indulin | any of a class of blue dyes obtained from aniline and aminoazobenzene |
| nigrosin | any of the class of deep blue or black dyes obtained by the oxidation of aniline, used as coloring agents in inks and shoe polishes and for dyeing leather, wood, textiles, and furs |
| phthalocyanines | Any of a large class of green or blue pigments and dyes that are chelate complexes of this compound or one of its derivatives with a metal (in particular, copper) |
| phthalocyanine | Any of a large class of green or blue pigments and dyes that are chelate complexes of this compound or one of its derivatives with a metal (in particular, copper) |
| dimethylaniline | an oily liquid, aniline heated with methyl alcohol and hydrochloric acid, from which dyes are obtained |
