[Histonet] Marking specimens through decalcification

[Pixley, Sarah (pixleysk)]

Dear Histonet:
I will be putting rodent nose tissues in 10% formic acid to decalcify
(after perfusion fixation in 4% paraformaldehyde). I need to mark the
tissues to keep track of them. What can I use that will withstand the
several days in formic acid? Each nose will be in a separate Shandon
biopsy bag.

Thanks
Sarah Pixley
Univ. Cincinnati