Pepsin is a proteolytic enzyme product derived from porcine stomach linings. 
Pepsin 1:3000 is equivalent to 3000 FCC units/mg.
3000 FCC U/mg = 0.5 U/mg USP = 0.5 U/mg Ph Eur = 0.5 U/mg FIP

Activity (FCC U/mg)

3000 - 3500

E. coli (P/F) (P/F)

 

Heavy Metals (%)

0.004

Salmonella (P/F)

 

Solubility (2%, Water) (P/F)