| Answer | Crossword Clue |
|---|---|
| LITMUS | Blue coloring matter |
| DYESTUFFS | Coloring matter |
| DYESTUFF | Coloring matter. |
| PIGMENT | Coloring matter. |
| DYE | Coloring matter. |
| DYES | Coloring matter |
| DYEWEED | Plant yielding coloring matter |
| CHLOROPHYLL | Green coloring matter of plants. |
