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Phenylalanine
C9H11NO2 165.19
 l-Phenylalanine [63-91-2]

DEFINITION

Phenylalanine contains NLT 98.5% and NMT 101.5% of l-phenylalanine (C9H11NO2), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP l-Phenylalanine RS
USP l-Tyrosine RS
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