Trifluoroacetic AcidSulfonic AcidsFluoroacetatesSolventsAcetic AcidAcetic AnhydridesTrinitrobenzenesulfonic AcidChromatography, High Pressure LiquidHydrochloric AcidChromatography, Reverse-PhaseSpectrometry, Mass, Electrospray IonizationMolecular StructureSpectrophotometry, UltravioletNaphthalenesulfonatesAnilino NaphthalenesulfonatesColitisIndicators and ReagentsMass SpectrometryChromatography, LiquidCyanogen BromideAmino AcidsPeptidesAmino Acid SequenceAlkanesulfonic AcidsChromophore-Assisted Light InactivationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationPeptide FragmentsBenzothiazolesMolecular Sequence DataSulfanilic Acids