5-hydroxydopa, a new compound in the Raper-Mason scheme of melanogenesis
DOI:
https://doi.org/10.2340/0001555560281286Abstract
Oxidation of tyrosine or dopa by tyrosinase leads to the formation of 5-OH-dopa, a compound previously unknown in melanogenesis. 5-OH-dopa, first detected as an unknown compound on HPLC of the dopa-tyrosinase incubate, was purified by Al2O3-adsorption, semipreparative HPLC, and ion-exchange chromatography. 5-OH-dopa was identified by comparison with the authentic compound in several chromatographic systems, by electrochemical oxidation studies and by mass spectrometry.Downloads
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