[Histonet] Histological products

[Mylène de Champlain]

Hi,
 
I would like to know if those histological products still good even if they are expired. They still sealed in the original package. 
 
Products                                          Expiration
Consul-mount histology formulation    09-2007
Shandon xylene-substitute mountant   01-2007
Instant hematoxylin (powder)             09-2003
 
Thank you for your answers.
 
Mylène 
Université du Québec à Rimouski
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