USPUSP-NF
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Tyrosine
C9H11NO3 181.19
 l-Tyrosine [60-18-4]

DEFINITION

Tyrosine contains NLT 98.5% and NMT 101.5% of l-tyrosine (C9H11NO3), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP l-Phenylalanine RS
USP l-Tyrosine RS
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