REAGENT
Set to 5 different clues across 5 published puzzles, most often “Assaying aid” — The New York Times, Saturday, 10 May 2008.
7 letters
Every clue on record, most used first
- Assaying aidonce
The New York Times — Saturday, 10 May 2008
- Assay needonce
The New York Times — Sunday, 9 January 2005
- Chemistry lab selectiononce
The New York Times — Friday, 4 July 1997
- Chromatography sprayonce
The New York Times — Saturday, 31 May 1997
- Litmus, for oneonce
The New York Times — Saturday, 7 October 1995