The ionization and optical properties of oxoformycin.
Details are given of the ultraviolet, optical rotatory dispersion and fluorescence spectra of oxoformycin. The pK of formation of the monoanion is 8.6, at 25 degrees C. As formycin B has the same pK value, the ionization of both compounds is ascribed to dissociation of a proton from N-1. Both the neutral and monoanionic forms of oxoformycin are strongly fluorescent.
D000903:Antibiotics, Antineoplastic; D005573:Formycins; D006863:Hydrogen-Ion Concentration; D009904:Optical Rotation; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
D000903:Antibiotics, Antineoplastic; D005573:Formycins