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international unit
Symbol:  UI, IU 
Category:  Enzymatic activity 
SI Equivalent:  1.66667×10-8 mol/s
Dimension T-1
System:  EUR. 
 
Notes
The international unit represents the amount of enzyme that transforms 10x-6 mole of substrate per minute at 25°C.
Convert     UI, IU  
1 UI, IU =
Enzymatic activity
  Symbol Unit Name
1.66667×10-8  kat  katal 
1.66667×10-8  mol/s  mole per second 
Glossary