| Answer | Crossword Clue |
|---|---|
| GAS | Unseen compound, often |
| ESTER | Often fragrant compound |
| ORE | "-ite" compound, often |
| ENOL | Often unstable compound |
| AMINE | Unpleasant-smelling compound, often |
| ESTER | Fragrant organic compound, often |
| ESTER | Organic compound, often odorific |
| NACL | Chemical compound often labeled "S" |
