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. 2003 Jan;69(1):434–443. doi: 10.1128/AEM.69.1.434-443.2003

FIG. 4.

FIG. 4.

(A) Mass spectrum of a metabolite tentatively identified as ethylcyclopentylcarboxylic acid (as TMS ester) in ECP-degrading cultures. (B) Mass spectrum of an authentic standard of cyclopentylcarboxylic acid (as TMS ester).