4-Hydroxyphenylpyruvic acid4-Hydroxyphenylpyruvic acid (4-HPPA) is an intermediate in the metabolism of the amino acid phenylalanine. The aromatic side chain of phenylalanine is hydroxylated by the enzyme phenylalanine hydroxylase to form tyrosine. Read from the Chembox of the Wikipedia article 4-Hydroxyphenylpyruvic acid, revision 1380129874.

Property

Value

Formula

C9H8O4, 180.16 g/mol

Melting point

219.5 °C

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