3d image of 4-hydroxyphenylpyruvic acid skeletal formula

4-hydroxyphenylpyruvic acid tyrosine 4-hppa catabolism cinnamic oxopropanoic metabolism oxime hydroxyphenylpyruvate dioxygenase phenylalanine hydroxylase phenyl hydroxy amino molecular formula hppd tyrosinemia keto ochronotic pigment scytonemin homogentisic 3d rendering chemical cell biochemistry biomolecule molecule structural structure metabolite biosynthesis mechanism pathway path biosynthetic hmdb intermediate biogenesis precursor synthesis derivative bioprecursor metabolic aromatic