wurster's blue

Questions

What does wurster's blue mean?

N,N,N′,N′-tetramethyl-p-phenylenediamine, an easily oxidized phenylenediamine whose radical cation is a characteristic blue-violet colour.

Where does wurster's blue come from?

Discovered by the German chemist Casimir Wurster (1854–1913).

How to pronounce wurster's blue

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