low price high purity L-Tryptophan China supplier

• Min.Order :0 Metric Ton
• Purity: >98%

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• Address: 14, 4580 Dushi, Shanghai, China
• Member Since: 2008
• Business Type: Other
• Tel: +86 21 34123252
• Phone:
• Fax: +86 21 54153973
• Email: xinchem@126.com