On Tue, 5 Oct 1999, Bourassa, Patricia wrote:

> I'm looking for a source for mecurichrom dye (spelling??) --  I've never
> used it and this procedure I'm working with calls for labeling the tissue
> with this dye for orientation purposes.

    Mercurochrome is in the Sigma catalogue.
    It is also in the Aldrich catalogue, but under
    its alternative name of merbromin. You might
    also find it in a pharmacy. I remember it
    being used as a topical antiseptic for abrasions
    in the 1960s: bright red and doesn't wash off.
    It is an organic mercury compound, so be careful
    with it.  LD50 (rabbit, i.v.) = 15-20 mg/kg.
    The amounts needed to mark specimens, however,
    should be minuscule.

 John A. Kiernan,
 Department of Anatomy & Cell Biology,
 The University of Western Ontario,
 LONDON,  Canada  N6A 5C1