| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Fri, Jan 30, 2015 | 17A | Chemical synthesis component | David Phillips | Shortz |
| Sat, May 10, 2008 | 42D | Assaying aid | Karen M. Tracey | Shortz |
| Sun, Jan 09, 2005 | 51D | Assay need | Brendan Emmett Quigley | Shortz |
| Fri, Jul 04, 1997 | 14D | Chemistry lab selection | Manny Nosowsky | Shortz |
| Sat, May 31, 1997 | 41D | Chromatography spray | Frank Longo | Shortz |
| Sat, Oct 07, 1995 | 35D | Litmus, for one | Frank A. Longo | Shortz |