p-Nitrophenyl Na-Benzyloxycarbonyl-L-Lysinate
 

Dear All,

I'm studying the Bromelain complex from Pinapple stems. For the
inhibition assays of the Bromelain I'm desperately looking for a
specific chromogenic substrate called p-Nitrophenyl
Na-Benzyloxycarbonyl-L-Lysinate. This substarte appears in few papers
and in all they don't specify the source of the compound.
I have searched hi and low in all the large chemical suppliers with no
luck.
Can anyone please help me out???

Thank you in advance