| Clue | Source | Date |
|---|---|---|
| Hydroxyl compounds | Wall Street Journal | 26 May 2018 |
| Hydroxyl compounds | ||
| Hydroxyl compounds | Premier Sunday | 08 Jan 2017 |
| Organic compounds | USA Today | 27 Aug 2015 |
| Organic compounds | ||
| Carbon compounds | ||
| Carbon compounds | ||
| Organic compounds | ||
| Organic compounds | ||
| Some carbon compounds | ||
| Organic compounds | ||
| Compounds with double-bond carbons | ||
| Some organic compounds | ||
| Hydroxyl compounds | ||
| Hydroxyl compounds | ||
| Organic compounds | ||
| Organic chemistry topic | ||
| Organic compounds | ||
| Organic compounds | ||
| Chemical compounds | ||
| Chemical compounds | ||
| Certain organic compounds | ||
| Tautomers | ||
| Chemical compounds. | ||
| Chemicals containing carbon. | ||
| Carbon compounds |