Ultraviolet Spectra Of Derivatives Of Cysteine,cystine, Histidine, Phenylalanine, Tyrosine, And Tryptophan

FIGURE 1. Ar-Acetyl-DL-tryptophan methyl ester. (From Bailey, in DMS UV A tlas o f Organic Compounds, Vol. 2, Verlag Chemie, Weinheim and Butterworths, London, 1966. With permission.)

FIGURE 2. jV-Acetyl-DL-0 -phenylalanine methyl ester. (From Bailey, in DMS UV Atlas o f Organic Compounds, Vol. 2, Verlag Chemie, Weinheim and Butterworths, London, 1966. With permission.)

FIGURE 3. JV-Acetyl-L-tyrosine ethyl ester. (From Bailey, in DMS UV Atlas o f Organic Compounds, Vol. 2, Verlag Chemie, Weinheim and Butterworths, London, 1966. With permission.)

FIGURE 4. W-Acetyl-L-tyrosine ethyl ester anion. (From Bailey, in DMS UV Atlas o f Organic Compounds, Vol. 2, Verlag Chemie, Weinheim and Butterworths, London, 1966. With permission.)

FIGURE 5. Histidine. (From Johnson, in DMS UV Atlas o f Organic Compounds, Vol. 5, Verlag Chemie, Weinheim and Butterworths, London, 1971. With permission.)