It is often critical to know the precise concentration of basic organometallic reagents, such as organolithium or organomagnesium (Grignard) reagents.
Catapower’s salicylaldehyde phenylhydrazone makes it easy to titrate these reagents. This non-hygroscopic solid serves as both the titrant and the indicator, eliminating the need to separately dry a liquid titrant alcohol such as butanol.