Conn specifically comments that Bernthen's methylene violet is used in 
MacNeal's stain.  That is CI #52041 according to Aldrich.

Bryan Llewellyn


anclg wrote:
> Hi everyone,
>      I`m ordering the stains to make up Macneals Tetrachrome, I really
> like the sound of this, but Sigma sell two methylene violets one with
> C.I. 52041 and one with C.I. 50206,  can anyone tell me which one to
> order? Bye the way , I am enjoying the saline in the microwave saga.:-)
> Many thanks.   Chris Goodall
> 
> 
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