l-Dopaquinone also known as o-dopaquinone is a metabolite of L-DOPA (L-dihydroxyphenylalanine) and a precursor of melanin.

[1][2] Biosynthesis of melanin occurs in melanocytes, where tyrosine is converted into DOPA and then dopaquinone, which goes on to be formed into pheomelanin or eumelanin.

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