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L-Tryptophan
73-22-3
Shandong Lanyuguang Chemical Co., Ltd
Crossland
L-tryptophan
Zhejiang Chyszern Technology Co., Ltd.
Mianzhu Pengfa Biochemical Co., Ltd
Shandong Ranhang Biotechnology Co., Ltd.
Jiangsu SOHO International Group Corp., China.
Xi'an Lanshan Biotechnology Co., Ltd.
Shijiazhuang Haitian Fine Chemicals Co., Ltd
Evonik Degussa Specialty Chemicals(Shanghai) Co.,Ltd
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