ACETAL
| Date | Clue |
|---|---|
| 2018-06-15 | Perfumery compound |
| 2017-04-23 | Perfumer's liquid |
| 2005-07-14 | Volatile solvent |
| 2004-03-27 | Perfume ingredient |
| 2002-07-21 | Chemical used in perfumes |
| 1998-05-30 | Compound used in perfume manufacture |
| 1995-01-29 | Hypnotic ingredient in medicine |
| 1994-10-12 | Solvent |
| 1994-04-09 | Alcohol solvent |