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