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Chalcone. (A) LC-MS analysis culture broth extract of S. coelicolor's spores after 6 h germination in R3 medium with glycerol. MS chromatogram recorded for m/z 209.097. (B) Mass spectrum of compound with tR = 3.41 min. Acquired m/z 209.0965 corresponds to [M+H]+ of chalcone with the theoretical m/z = 209.0966.
