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Tangu,shijiazhuang,hebei,China China
L-Methionine English Name: L-Methionine Chemical Name: L**-Amino**-(methylthio)butanoic acid. CAS No.: ***
English Name: L-Tryptophan Chemical Name: L-a-Amino**-indole-propionic acid. CAS No.: ******3 Molecular For
Contact Person Mr. sophia wang
Address Tangu, shijiazhuang, hebei
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