| Answer | Crossword Clue |
|---|---|
| TNT | Chemical first used as a dye |
| TNT | Explosive used as a dye when first invented |
| EOSIN | Dye used as a toner |
| TNT | What was originally used as a yellow dye before its best-known property was discovered |
| ROMAN | Like each starred answer's first letter, when used as a numeral |
| ANILINE | Chemical used in dye |
