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. 2012 Nov;12(11):1055–1068. doi: 10.1089/ast.2012.0857

FIG. 3.

FIG. 3.

Characterization data for etioporphyrin obtained from the reaction of 1-Me and 2-Et (120 mM each reactant, pH 7, 60°C, 24 h) in the presence of 0.1 M decanoic acid. (A) Absorption spectra in 1-propanol of the crude etioporphyrin sample (solid black line) and authentic sample of etioporphyrin I (dashed red line). (B) Fluorescence excitation (λem 690 nm) and emission (λex 395 nm) spectra in 1-propanol of the crude etioporphyrin sample (solid lines) compared with those of an authentic sample of etioporphyrin I (dashed lines).