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. 2023 Sep 21;16(9):1331. doi: 10.3390/ph16091331

Figure 13.

Figure 13

FT-IR spectra of compound 2 before (blue line) and after (green line) irradiation with a dose of 6.0 × 106 lux·h in the ranges of 3900–400 cm−1 (a) and 1900–1400 cm−1 (b).