Thionine is a dark green crystalline powder that turns violet in solution. This property makes it useful in microscopy as a biological stain.
We sell thionine, a pH dependent redox indicator (E0 = 0.06 at pH 7.0) as a 1% solution in water.
| CAS Number | 78338-22-4 |
|---|---|
| E0 [mV] | 60 |
| Colour (ox – red) | violet – colourless |
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