I am pretty sure it is just methylene blue.You can also see what kind of diffraction pattern the crystal has, or just squish it and see if it crumbles.
On Jun 14, 2008, at 1:51 PM, Mark Del Campo wrote:
Before I place an order for some Izit, are there some other dyes I can use to check if I've got a proteincrystal? Thanks, Mark
