The photochemical behavior of 5‐S‐cysteinyldopa (5‐S‐CD), a colorless product of
melanocyte metabolism, was investigated in neutral phosphate buffer with biologically …

Cysteinyldopas, metabolic by‐products of activated melanocytes, are photochemically
unstable in the presence of biologically relevant ultraviolet radiation (ie wavelengths> 300 …

5-S-Cysteinyldopa concentrations in serum were studied in healthy individuals exposed to
daily high-intensity UVA radiation. A marked increase in 5-S-cysteinyldopa was found after 3 …

Although melanin is a photoprotective pigment, its elevated photochemical reactivity could
lead to various phototoxic processes. Photoreactivity of synthetic pheomelanin, derived from …

Under biologically relevant conditions, oxidation of 5-S-cysteinyldopa (1) to pheomelanins
proceeds through the formation of the 1, 4-benzothiazine 7 along with the 3-carboxy …

The photochemistries of the melanin precursors dopa, 5‐S‐cysteinyldopa (5‐SCD) and 2.5‐
S, S'‐dicysteinyldopa (2.5‐SCD) were investigated by 265‐nm laser flash photolysis. The …

Recent evidence suggests that the melanogenesis intermediate 5-S-cysteinyldopa (5-S-CD)
could display antioxidative activity. In the present study, the synthesis of 5-S-CD was …

Interest in 5-S-cysteinyldopa (5-S-CD), a major excretion product of normal and malignant
melanocytes, has traditionally concentrated on its significance as a biosynthetic precursor of …

5-S-Cysteinyldopa (5-S-CD) is found in all pigment-producing cells and is the major
precursor of phaeomelanin. However, the melanocyte specificity of the compound has been …

SUMMARY Plasma 5‐S‐cysteinyldopa (5‐S‐CD) concentrations measured in healthy
volunteers in Edinburgh, Scotland (latitude 56 N) showed only minor changes during the …