phenylalanine or l-phenylalanine, phe, f, amino acid molecule. skeletal formula.

phenylalanine molecule chemical formula skeletal amino essential c9h11no2 supplement pku phenylketonuric phenylketonuria phenylalanin oxygen nutritional nitrogen lupine lphenylalanine hydrogen food carbon benzyl aromatic atomic atoms chemistry composition compound drawing flat icon line medical medicine molecular science structure