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DL-Tryptophan (8)CAS RN:54-12-6
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Ningbo Create Biological Project Co., Ltd.Telephone:86-574-86553666 86553333
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Shanghai Brightol International Co.,LtdTelephone:+86-21-67866961
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Orchid Chemical Supplies LtdTelephone:+86-571-85395792 +13867466880
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Shanghai Meg Imp. and Exp. CorporationTelephone:021-51082199
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AFINE CHEMICALS LIMITEDTelephone:+86-571-85232125;85232161;85134551
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Shijiazhuang Rich Pharmaceutical Co,. Ltd.Telephone:86-311-84338609
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Hebei Chiral Chemistry and Biotechnology Co., Ltd.Telephone:+86-15127158185
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SNC International Co., LimitedTelephone:+86-22-28221962;28221963;88269480