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4-Aminobutyric Acid
56-12-2
Darsh Chemicals
Wuhan Yuan Cheng Tech
Beijing Ribio Biotech. Inc
ADVANCED TECH. & IND. CO., LTD.
Aceto Corporation
MARINE BIOPROCESS CO LTD
Hefei Leaf Biotech Co.,Ltd.
Changzhou Huakang Chemical Factory
Changchun Dingxin Chemical Company
Shanghai Doroe Biotechnology Co., Ltd.