Patent ID: 8211662

Claim:
A microorganism detection and/or identification medium for microorganisms having at least one nitroreductase activity comprising at least one enzyme substrate for detecting a nitroreductase activity of formula (I) below: in which: X is S, NX1, O or NX1-CO; R1 is nothing or a substituent selected from Cl, CH 3 , Br, F, I, alkyl, aryl and carboxyl; R2 is nothing or a substituent selected from Cl, O—CH 2 —O, O—CH 3 , F, diethylenediamine-CH 3 , NR3R4, Br, I, alkyl, aryl, carboxyl, NO 2 and R3 and R4 are independently H or an alkyl group containing from 1 to 4 carbon atoms; and X1 is selected from H, CH 3 , C 2 H 4 Ph, OH, alkyl and aryl.