Patent ID: 8592175

Claim:
A method for detecting in microorganisms a nitroreductase activity, comprising the following steps: a) having available a detection and/or identification medium comprising a compound of formula (I) wherein: W 1 , W 2 , W 3 and W 4 are independently H, Br, Cl, F, I, alkyl, alkoxy, thiomethyl, perfluoroalkyl, nitro, cyano, carboxyl, carboxyl esters or carboxyl amides or any combination thereof n=0, 1 or 2 wherein if U is N or N + R and then V is CZ 6 or N, R being H, alkyl, aralkyl, aryl, alkanoic or alkylsulfonic Z 1 , Z 2 , Z 3 , Z 4 , Z 5 and Z 6 being independently H, Br, Cl, F, I, alkyl, aryl, alkoxy, perfluoroalkyl, nitro, cyano, carboxyl, sulfonyl, including the esters or amides of carboxyl or sulfonyl and salts thereof; b) inoculating the medium with a biological sample to be tested, c) allowing to incubate, and d) detecting the presence of at least one nitroreductase activity.