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. 2022 Jan 20;12(5):2684–2692. doi: 10.1039/d1ra07811a

UV-vis data of the dyes 1–3 in EtOH, DCM, AcCN and acidified EtOH.

λ max EtOH λ max DCM λ max AcCN λ max EtOH (H+)
1-H 294, 334 302, 344 300, 346 348, 415, 492
2-OMe 304, 344 318, 355 315, 347 309, 361, 440, 517
3-OCF3 293, 331 311, 337 306, 344 307, 345, 407, 481