| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Emil Fischer must have been in a coffeehouse when he identified this stimulant as part of the purine group | caffeine | $400 | DJ | SCIENCE CLASS | 2002-12-03 | #4202 | |
| Among alkaloids found in plants, this stimulant is found in coffee or tea | caffeine | $100 | J | SCIENCE | 1996-01-18 | #2624 | |
| C8H10N4O2; Coke, Pepsi & Sanka found things go better without it | caffeine | $800 | DJ | SCIENCE | 1984-11-19 | #51 |