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Phenylalanine (symbol Phe or F)[2] is an essential α-amino acid with the formula C9H11NO2.
P 1605 (OTTO) DL-Phenylalanine, 99%+ Cas 150-30-1 - used in the synthesis of ternary piroxicam (Pir; 4-hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide) complexes of Fe(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II).