| Answer | Crossword Clue |
|---|---|
| ORTOL | Photographic developer. |
| AMIDOL | Photographic developer |
| AMIDOL | Photographic-developer compound |
| AMIDOL | Photographic developer of bromid plates. |
| AMIDOL | Compound used as a photographic developer |
| AMIDOL | Salt used as a photographic developer |
