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Methionine
C5H11NO2S 149.21
 l-Methionine [63-68-3]

DEFINITION

Methionine contains NLT 98.5% and NMT 101.5% of l-methionine (C5H11NO2S), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP N-Acetyl-d,l-methionine RS
USP l-Methionine RS
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